Segmentation Fault in bash --posix

[N R]

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -g -O2
uname output: Linux manwelinux 5.15.85-1-MANJARO #1 SMP PREEMPT Wed Dec 21
21:15:06 UTC 2022 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu

Bash Version: 5.2
Patch Level: 15
Release Status: release

Description:
    I ran into a segmentation fault running bash --posix. Here are the
steps to reproduce :
    bash-5.1$ echo () { echo test }
    > echo test
    > }
    bash-5.1$ echo
    Even though I'm not sure what is causing this seg fault, I'm sure it is
not the normal/expected behaviour.

Repeat-By:
    I tested this with a manually compiled version of bash, using the
following commands :
    $ ./configure --enable-debugger
    $ make
    $ ./bash --posix
    bash-5.1$ echo () { echo test }
    > echo test
    > }
    bash-5.1$ echo
    This produces a seg fault.