bookmark: do not crash when active bookmark is forward and --date is used
The logic that decides where to update according to the active bookmark
location (when not on ".") was setting the rev to update to before we process
--date. This lead to --date processing aborting because of duplicated
specification.
We reorder the two pieces of code and add a test for this.
basic test for hg debugrebuildstate
$ hg init repo
$ cd repo
$ touch foo bar
$ hg ci -Am 'add foo bar'
adding bar
adding foo
$ touch baz
$ hg add baz
$ hg rm bar
$ hg debugrebuildstate
state dump after
$ hg debugstate --nodates | sort
n 644 -1 set bar
n 644 -1 set foo
status
$ hg st -A
! bar
? baz
C foo
$ cd ..