[Bug] GRASS shell in nix develop lacks completion and navigation

[wenzeslaus]

Describe the bug

nix develop creates and environment with its own shell - Bash. I don't see any issues with that one. However, starting GRASS GIS with a shell, e.g., grass --text, gives partially broken version of that shell. It is the same shell (whatever is in $SHELL, so /nix/store/.../bin/bash), but this is the behavior I get:

• Arrows don't move, but produce ^[[A^[[C^[[B^[[D. Same for Home etc.
• Tab writes tab, but does not auto-complete.
• Search with Ctrl+R does not work, ^R is produced instead.

To reproduce

nix develop
app/bin/grass --text --tmp-project XY

Expected behavior

Same behavior as the shell in nix develop and GRASS shell without nix.

System description

• Operating System: Pop!_OS 22.04 LTS (jammy)
• Our nix environment
• GRASS GIS version: main branch
• GNU bash, version 5.2.32(1)-release (x86_64-pc-linux-gnu) (from /nix/store)