bundlerepo: avoid exception in __del__ when the bundle doesn't exist
$ hg -R bundle://foo.hg
abort: No such file or directory: foo.hg
Exception exceptions.AttributeError: "'bundlerepository' object has no attribute 'bundlefile'" in <bound method bundlerepository.__del__ of <mercurial.bundlerepo.bundlerepository object at 0xa7ab9fac>> ignored
changeset: 0:0acdaf898367
tag: tip
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: test
changeset: 1:3ecf002a1c57
tag: tip
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: Added tag bleah for changeset 0acdaf898367
changeset: 0:0acdaf898367
tag: bleah
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: test
abort: working copy of .hgtags is changed (please commit .hgtags manually)
failed
use of 'hg tag NAME [REV]' is deprecated, please use 'hg tag [-r REV] NAME' instead
abort: use only one form to specify the revision
failed
use of 'hg tag NAME [REV]' is deprecated, please use 'hg tag [-r REV] NAME' instead
0acdaf8983679e0aac16e811534eb49d7ee1f2b4 bleah
0acdaf8983679e0aac16e811534eb49d7ee1f2b4 bleah0
3ecf002a1c572a2f3bb4e665417e60fca65bbd42 bleah1
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
0acdaf8983679e0aac16e811534eb49d7ee1f2b4 foobar
3ecf002a1c572a2f3bb4e665417e60fca65bbd42 bleah1
abort: '\n' cannot be used in a tag name
abort: ':' cannot be used in a tag name