url: fix bug in passwordmgr related to auth configuration
Usernames given as part of the URL would be ignored.
This bug was introduced in 89c80c3dc5842d609e9ba13f08fd2cf7f127c25a
% init repo1
% add a; ci
adding a
% cat .hg/store/fncache
data/a.i
% add a.i/b; ci
adding a.i/b
% cat .hg/store/fncache
data/a.i
data/a.i.hg/b.i
% add a.i.hg/c; ci
adding a.i.hg/c
% cat .hg/store/fncache
data/a.i
data/a.i.hg/b.i
data/a.i.hg.hg/c.i
% hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
3 files, 3 changesets, 3 total revisions
% rm .hg/store/fncache
% hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
data/a.i@0: missing revlog!
data/a.i.hg.hg/c.i@2: missing revlog!
data/a.i.hg/b.i@1: missing revlog!
3 files, 3 changesets, 3 total revisions
3 integrity errors encountered!
(first damaged changeset appears to be 0)