ere is what is inspired by your reply:
$ trap '' USR1
$ bash
$ (trap true EXIT; grep Ign /proc/$BASHPID/status)
For this:
A: SigIgn:
B: SigIgn:
C: SigIgn: 0200
This is the behaviour I was reporting. The thing is, the behaviour is
undocumented,
Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -g -O2 -fdebug-prefix-map=/build/bash-LQgi2O/bash-5.0=.
-fstack-protector-strong -Wformat -Werror=format-security -Wall
-Wno-parentheses -Wno-format-security
uname out
