WandbLogger warning not logging logs.
🐛 Bug
WandbLogger giving warning: WARNING Adding to old History rows isn't currently supported. Step 25 < 38 and not logging when I try to use the WandbLogger with k-fold cross-validation because there I am using the same instance of wandb_logger but using trainer.fit multiple times for different train_dl and valid_dl. Since the step gets repeated in each case, it's not logging anything after the 1st fold is complete even though the log keys are completely different. It was working perfectly with pytorch-lightning v-0.7.4. For now, I have to create separate experiments for each fold which are hard to analyze on wandb.

To Reproduce
Code sample
Colab Notebook

Expected behavior
It should log even when the global_step is repeated in case if the logs keys are different.

Environment

PyTorch Version (e.g., 1.0): 1.5.0
OS (e.g., Linux): Linux
How you installed PyTorch (conda, pip, source): pip
Build command you used (if compiling from source):
Python version: 3.7
CUDA/cuDNN version: 10.1
GPU models and configuration: Tesla P100-PCIE-16GB
Any other relevant information:

Additional context