torch.jit.script persistently changes default from utf-8 to ascii
Labels: oncall: jit

### 🐛 Describe the bug

here a 'simple' way to reproduce the issue
```
import torch

@torch.jit.script
def snake(x, alpha):
    x = x + alpha + 1e-9
    return x

class Snake1d(torch.nn.Module):
    def __init__(self, channels):
        super().__init__()
        self.alpha = torch.nn.Parameter(torch.ones(1, channels, 1))

    def forward(self, x):
        return snake(x, self.alpha)

class ResidualUnit(torch.nn.Module):
    def __init__(self, dim=16, dilation=1):
        super().__init__()
        pad = ((7 - 1) * dilation) // 2
        self.block = torch.nn.Sequential(
            Snake1d(dim),
            torch.nn.Conv1d(dim, dim, kernel_size=7, dilation=dilation, padding=pad),
            Snake1d(dim),
            torch.nn.Conv1d(dim, dim, kernel_size=1),
        )

    def forward(self, x):
        return self.block(x)

model = torch.nn.Sequential(
    ResidualUnit(32, dilation=1),
    ResidualUnit(32, dilation=3),
)
model.to("cuda")
_ = model.forward(torch.zeros((1, 32, 10000)).to("cuda"))

with open("/tmp/test.txt", "w") as f:
    f.write(chr(999))
```

### Versions

CPU:
Architecture:                       x86_64
CPU op-mode(s):                     32-bit, 64-bit
Byte Order:                         Little Endian
Address sizes:                      48 bits physical, 48 bits virtual
CPU(s):                             128
On-line CPU(s) list:                0-127
Thread(s) per core:                 2
Core(s) per socket:                 32
Socket(s):                          2
NUMA node(s):                       2
Vendor ID:                          AuthenticAMD
CPU family:                         25
Model:                              1
Model name:                         AMD EPYC 7513 32-Core Processor
Stepping:                           1
Frequency boost:                    enabled
CPU MHz:                            1499.741
CPU max MHz:                        2600.0000
CPU min MHz:                        1500.0000
BogoMIPS:                           5200.15
Virtualization:                     AMD-V
L1d cache:                          2 MiB
L1i cache:                          2 MiB
L2 cache:                           32 MiB
L3 cache:                           256 MiB
NUMA node0 CPU(s):                  0-31,64-95
NUMA node1 CPU(s):                  32-63,96-127
Vulnerability Gather data sampling: Not affected
Vulnerability Itlb multihit:        Not affected
Vulnerability L1tf:                 Not affected
Vulnerability Mds:                  Not affected
Vulnerability Meltdown:             Not affected
Vulnerability Mmio stale data:      Not affected
Vulnerability Retbleed:             Not affected
Vulnerability Spec store bypass:    Mitigation; Speculative Store Bypass disabled via prctl and seccomp
Vulnerability Spectre v1:           Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2:           Mitigation; Retpolines, IBPB conditional, IBRS_FW, STIBP always-on, RSB filling, PBRSB-eIBRS Not affected
Vulnerability Srbds:                Not affected
Vulnerability Tsx async abort:      Not affected
Flags:                              fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 invpcid_single hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 invpcid cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr wbnoinvd arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold v_vmsave_vmload vgif umip pku ospke vaes vpclmulqdq rdpid overflow_recov succor smca

Versions of relevant libraries:
[pip3] flake8==6.1.0
[pip3] mypy-extensions==1.0.0
[pip3] numpy==1.23.5
[pip3] open-clip-torch==2.20.0
[pip3] pytorch-lightning==2.0.6
[pip3] pytorch-triton==2.1.0+e6216047b8
[pip3] rotary-embedding-torch==0.2.7
[pip3] torch==2.1.0
[pip3] torch-stoi==0.1.2
[pip3] torchaudio==2.1.0
[pip3] torchcrepe==0.0.21
[pip3] torchlibrosa==0.1.0
[pip3] torchmetrics==1.0.2
[pip3] torchvision==0.15.2
[pip3] triton==2.1.0
[conda] numpy                     1.23.5                   pypi_0    pypi
[conda] open-clip-torch           2.20.0                   pypi_0    pypi
[conda] pytorch-lightning         2.0.6                    pypi_0    pypi
[conda] pytorch-triton            2.1.0+e6216047b8          pypi_0    pypi
[conda] rotary-embedding-torch    0.2.7                    pypi_0    pypi
[conda] torch                     2.1.0                    pypi_0    pypi
[conda] torch-stoi                0.1.2                    pypi_0    pypi
[conda] torchaudio                2.1.0                    pypi_0    pypi
[conda] torchcrepe                0.0.21                   pypi_0    pypi
[conda] torchlibrosa              0.1.0                    pypi_0    pypi
[conda] torchmetrics              1.0.2                    pypi_0    pypi
[conda] torchvision               0.15.2                   pypi_0    pypi
[conda] triton                    2.1.0                    pypi_0    pypi

cc @EikanWang @jgong5 @wenzhe-nrv @sanchitintel