panic in `issue list`: byte slice index out of bounds when oid < 8 chars

[joeycarpinelli]

Bug

forge issue list (and forge issue show) panic when an issue's oid field is shorter than 8 characters.

Backtrace

thread 'main' panicked at crates/git-forge/src/exe.rs:243:66:
byte index 8 is out of bounds of `1`

Root cause

print_issue_list (and print_issue) fall back to &issue.oid[..8] when display_id is None:

let id = issue.display_id.as_deref().unwrap_or(&issue.oid[..8]);

This is an unchecked byte-slice index on a String. If oid is shorter than 8 bytes, Rust panics at runtime.

Fix

Replace the hard-coded [..8] with a safe alternative such as issue.oid.get(..8).unwrap_or(&issue.oid).

Assisted-by: Claude Code (Claude Sonnet 4.6)