revsymbol: stop delegating to repo.__getitem__ for unhandled symbols (API)
The only remaining cases where we were delegating unhandled symbols to
repo.__getitem__ should now be when the symbol could not be found. In
that case we just delegated to repo.__getitem__ for the error
message. Let's just copy the error message instead.
If there were any cases where we got e.g. a binary nodeid or an
integer revnum into revsymbol() (e.g. via repo.lookup()), we'd now
start raising an exception instead. That is why this is marked (API).
This affects one test case, but the new behavior seems better to me. I
can't tell if the old behavior was desired or if the test was just
there to document how it happened to work.
Differential Revision: https://phab.mercurial-scm.org/D3196
Test for changeset ba7c74081861
(update dirstate correctly for non-branchmerge updates)
$ hg init a
$ cd a
$ echo a > a
$ hg add a
$ hg commit -m a
$ cd ..
$ hg clone a b
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd a
$ hg mv a b
$ hg commit -m move
$ echo b >> b
$ hg commit -m b
$ cd ../b
$ hg pull ../a
pulling from ../a
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
new changesets e3c9b40284e1:772b37f1ca37
(run 'hg update' to get a working copy)
$ hg update
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ cd ..