Fix #325 Do not squash main repo commits.

grimmySwe · grimmySwe · commit 74339e8ed7f7 · 2017-12-18T14:31:29.000+01:00
diff --git a/lib/git-subrepo b/lib/git-subrepo
@@ -531,7 +531,6 @@ subrepo:pull() {
   local branch_name="subrepo/$subref"
   git:delete-branch "$branch_name"
 
-  subrepo_parent="HEAD^"
   subrepo_commit_ref="$branch_name"
 
   o "Create subrepo branch '$branch_name'."
