[forwarded from https://bugs.debian.org/1056314]
""" I am getting a crash in the Python REPL in this scenario: 1. start "python3" in a terminal 2. type "2+2", enter 3. type (or copy-paste) "1234+5678", enter 4. arrow-up, remove "234", page-down, arrow-up, enter 5. arrow-up, arrow-up, add "000" (or whatever) after the 1, enter. this results in: free(): double free detected in tcache 2 [1] 2319820 IOT instruction python3 """ this can be reproduced as well when entering these in bash. readline is 8.2 patchlevel 7, bash is 5.2 patchlevel 21.
