view tests/test-hg-parseurl.py.out @ 24856:5c1364b7e5ac stable

convert: avoid traceback in subversion sink

We've had a couple reports of subversion tracebacks that trigger when
the parents list is empty, and thus block showing what the commit
failure was on the next two lines.

http://example.com/no/anchor, branches: (None, [])
http://example.com/an/anchor, branches: ('foo', [])
http://example.com/no/anchor/branches, branches: (None, ['foo'])
http://example.com/an/anchor/branches, branches: ('bar', ['foo'])
http://example.com/an/anchor/branches-None, branches: ('foo', [])
http://example.com/, branches: (None, [])
http://example.com/, branches: (None, [])
http://example.com/, branches: ('foo', [])