Problem

When a branch name contains # (e.g., feature/issue#123), the resulting worktree folder name also contains #. This breaks Python virtual environment scripts because the shebang line gets truncated.

Example

Branch: feature/issue#123
Folder: feature-issue#123

The shebang in .venv/bin/python:

#!/path/to/worktrees/feature-issue#123/.venv/bin/python

Shell interprets # as comment start, so it becomes:

#!/path/to/worktrees/feature-issue

This causes "command not found" errors when running any Python tool.

Environment

• OS: macOS
• Shell: zsh/bash
• Git version: 2.x

Proposed Solution

Add # to the character list in sanitize_branch_name() function in lib/core.sh:

-  printf "%s" "$branch" | sed -e 's/[\/\\ :*?"<>|]/-/g' -e 's/^-*//' -e 's/-*$//'
+  printf "%s" "$branch" | sed -e 's/[\/\\ :*?"<>|#]/-/g' -e 's/^-*//' -e 's/-*$//'

This converts feature/issue#123 to feature-issue-123.