Re: [PATCH] checkout -f: do not leave untracked working tree files.

"will" meaning "you suspect" or "you tried and confirmed"?

:-) I suspect.

Lets test. Your pu branch (5af05efbeaa06005596129fb111a739a87f8a883) really 
works. I have cvs repo and use git for daily work. I have head and 2 branches 
from cvs and store CVS/* files in git too. Usualy this operation pruduce a 
lot of CVS/Tag files:

git checkout -f cvs-v52 (this is one of by cvs's branch)
cvs -q up -dP (nothing have been updated)
git checkout -f master (this is a dev branch from cvs head)
git status

pu branch nuke them when use git checkout -f !