Merge branch 'jn/submodule-b-current'

* jn/submodule-b-current:
  git submodule: Remove now obsolete tests before cloning a repo
  git submodule -b ... of current HEAD fails

git-submodule.sh

@@ -93,20 +93,6 @@ module_clone()
 	url=$2
 	reference="$3"
 
-	# If there already is a directory at the submodule path,
-	# expect it to be empty (since that is the default checkout
-	# action) and try to remove it.
-	# Note: if $path is a symlink to a directory the test will
-	# succeed but the rmdir will fail. We might want to fix this.
-	if test -d "$path"
-	then
-		rmdir "$path" 2>/dev/null ||
-		die "Directory '$path' exists, but is neither empty nor a git repository"
-	fi
-
-	test -e "$path" &&
-	die "A file already exist at path '$path'"
-
 	if test -n "$reference"
 	then
 		git-clone "$reference" -n "$url" "$path"
@@ -241,7 +227,7 @@ cmd_add()
 			# ash fails to wordsplit ${branch:+-b "$branch"...}
 			case "$branch" in
 			'') git checkout -f -q ;;
-			?*) git checkout -f -q -b "$branch" "origin/$branch" ;;
+			?*) git checkout -f -q -B "$branch" "origin/$branch" ;;
 			esac
 		) || die "Unable to checkout submodule '$path'"
 	fi