nodetree: simplify a conditionnal in shortesthexnodeidprefix
instead of try to catch some attribute error, we could just nicely look if the
attribute will be available. This make the code simpler to follow and less error
prone since we no longer rely on a wider attribute catching.
Differential Revision: https://phab.mercurial-scm.org/D7651
#require symlink
https://bz.mercurial-scm.org/1438
$ hg init
$ ln -s foo link
$ hg add link
$ hg ci -mbad link
$ hg rm link
$ hg ci -mok
$ hg diff -g -r 0:1 > bad.patch
$ hg up 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg import --no-commit bad.patch
applying bad.patch
$ hg status
R link
? bad.patch