tests/test-backwards-remove.t

hgweb: run search instead of showing wrong error for ambigious identifier

Before this when multiple changesets hashes in the repos started with the
search query string, error was given that the revision isn't found, and it
was misleading. Now a simple keyword search runs in this case.

  $ hg init
  $ echo This is file a1 > a
  $ hg add a
  $ hg commit -m "commit #0"
  $ ls
  a
  $ echo This is file b1 > b
  $ hg add b
  $ hg commit -m "commit #1"
  $ hg co 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

B should disappear

  $ ls
  a