Fix the OSTree preconditions macro not populating reponame and branch
Address a regression introduced in commit 6b2fd91e "Turn the OSTree preconditions into a list" where the iteration on the preconditions list was done improperly.
Address a regression introduced in commit 6b2fd91e "Turn the OSTree preconditions into a list" where the iteration on the preconditions list was done improperly.
merged