[ot][crazy][personal] Micro-moronism Challenge: Iterate & Transform

[Undescribed Horrific Abuse, One Victim & Survivor of Many]

upshot: i discovered you can check out stashes as worktrees. it makes
a two-commit history, one for the stash index, and one for merging it
with the commit tip. cool stuff. git worktree add dirname 'stash@{0}'
.