Add heads back onto the ls-remote command.

tasks/general/acct_mgmt/users.yml

@@ -564,7 +564,7 @@
           echo -e "\n*** `basename $project` ***"
           cd $project
           if [[ -d .git ]]; then
-            git ls-remote --exit-code origin dev
+            git ls-remote --exit-code --heads origin dev
             dev_exists="$?"
             if [[ "$dev_exists" == 0 ]]; then
               git switch dev