tests/test-status-committed-and-ignored.t

httppeer: avoid another bad reference before assignment warning

This wasn't a problem, because `b''` from the `AttributeError` handler is in
`bundle2.bundletypes`, so the following loop and conditional always run at least
once.  But PyCharm can't figure that out on its own, and it took a little
exploring to figure out it wasn't a problem.  The usage in `bundle2.writebundle`
is to look it up in the map of bundle types, so it will break in a more obvious
way in the unlikely event that the empty string is removed from the map in the
future.

#testcases dirstate-v1 dirstate-v2

#if dirstate-v2
  $ cat >> $HGRCPATH << EOF
  > [format]
  > use-dirstate-v2=1
  > [storage]
  > dirstate-v2.slow-path=allow
  > EOF
#endif

  $ rm -rf r

  $ hg init r
  $ cd r
  $ mkdir d1
  $ mkdir d2
  $ touch d1/f d2/f
  $ hg commit -Am '.'
  adding d1/f
  adding d2/f
  $ echo 'syntax:re' >> .hgignore
  $ echo '^d1$' >> .hgignore
  $ hg commit -Am "ignore d1"
  adding .hgignore

Now d1 is a directory that's both committed and ignored.
Untracked files in d2 are still shown, but ones in d1 are ignored:

  $ touch d1/g
  $ touch d2/g
  $ RAYON_NUM_THREADS=1 hg status
  ? d2/g