perldelta: anither to-do
perldelta for 1311cfc
perldelta for 3df32bd
perldelta for 6b35226
perldelta for 51da40e
perldelta: another to-do
perldelta for 649c173
perldelta for 9e0ea7f

The thing about locking hash keys inside the substitution and
vivifying globs is too hard to explain clearly and concisely.
This section is entitled ‘*Selected* Bug Fixes’, after all.
perldelta for a547fd2
perldelta: another to-do
perldelta for 3b68edc
perldelta for 48120f8
perldelta for 85b7d9b
perldelta for 9bcf803 and 376ccf8
perldelta for 5f213d9
perldelta for 045071e
Stop reset from clearing aliases to globs

If $z has been aliased to *foo, then reset("z") would turn off the
SvOK flags on *foo, putting it in an inconsistent state.  This could
cause crashes.
perldelta for #3330/8140a7a
perldelta for #117355/aca7040
perldelta for #92260/b59747a