Updating regex pattern to handle unicode whitespaces.

Replacing the \s whitespace characters with normal spaces (" ") to prevent breaking on unicode whitespace characters (e.g., NBSP). Without this, if a branch name contains a unicode whitespace character that falls under \s, then the branch name will be truncated.

Author: jcole-crowdstrike

git/remote.py

@@ -325,7 +325,7 @@ class FetchInfo(IterableObj):
         ERROR,
     ) = [1 << x for x in range(8)]
 
-    _re_fetch_result = re.compile(r"^\s*(.) (\[[\w\s\.$@]+\]|[\w\.$@]+)\s+(.+) -> ([^\s]+)(    \(.*\)?$)?")
+    _re_fetch_result = re.compile(r"^ *(.) (\[[\w \.$@]+\]|[\w\.$@]+) +(.+) -> ([^ ]+)(    \(.*\)?$)?")
 
     _flag_map: Dict[flagKeyLiteral, int] = {
         "!": ERROR,

test/test_remote.py

@@ -1002,6 +1002,21 @@ def test_push_unsafe_options_allowed(self, rw_repo):
                 assert tmp_file.exists()
                 tmp_file.unlink()
 
+    @with_rw_and_rw_remote_repo("0.1.6")
+    def test_fetch_unsafe_branch_name(self, rw_repo, remote_repo):
+        # Create branch with a name containing a NBSP
+        bad_branch_name = f"branch_with_{chr(160)}_nbsp"
+        Head.create(remote_repo, bad_branch_name)
+
+        # Fetch and get branches
+        remote = rw_repo.remote("origin")
+        branches = remote.fetch()
+
+        # Test for truncated branch name in branches
+        assert f"origin/{bad_branch_name}" in [b.name for b in branches]
+
+        # Cleanup branch
+        Head.delete(remote_repo, bad_branch_name)
 
 class TestTimeouts(TestBase):
     @with_rw_repo("HEAD", bare=False)