fix dataclass InitVar usage for git backend

src/poetry/vcs/git/backend.py

@@ -22,8 +22,6 @@ from poetry.utils.helpers import remove_directory
 
 
 if TYPE_CHECKING:
-    from dataclasses import InitVar
-
     from dulwich.client import FetchPackResult
     from dulwich.client import GitClient
 
@@ -137,7 +135,7 @@ class GitRefSpec:
 
 @dataclasses.dataclass
 class GitRepoLocalInfo:
-    repo: InitVar[Repo | Path | str]
+    repo: dataclasses.InitVar[Repo | Path | str]
     origin: str = dataclasses.field(init=False)
     revision: str = dataclasses.field(init=False)
 
@@ -157,7 +155,11 @@ class Git:
         with repo:
             config = repo.get_config()
             section = (b"remote", remote.encode("utf-8"))
-            return config.get(section, b"url") if config.has_section(section) else ""
+            return (
+                config.get(section, b"url").decode("utf-8")
+                if config.has_section(section)
+                else ""
+            )
 
     @staticmethod
     def get_revision(repo: Repo) -> str:

tests/integration/test_utils_vcs_git.py

@@ -108,6 +108,15 @@ def remote_default_branch(remote_default_ref: bytes) -> str:
     return remote_default_ref.decode("utf-8").replace("refs/heads/", "")
 
 
+def test_git_local_info(
+    source_url: str, remote_refs: FetchPackResult, remote_default_ref: bytes
+) -> None:
+    with Git.clone(url=source_url) as repo:
+        info = Git.info(repo=repo)
+        assert info.origin == source_url
+        assert info.revision == remote_refs.refs[remote_default_ref].decode("utf-8")
+
+
 def test_git_clone_default_branch_head(
     source_url: str,
     remote_refs: FetchPackResult,