Call repo_clear() in ensure_core_worktree() to free the "struct
repository". Fixes a leak that's been here since
74d4731da1f (submodule--helper: replace connect-gitdir-workingtree by
ensure-core-worktree, 2018-08-13).

Signed-off-by: Ævar Arnfjörð Bjarmason <redacted>
---
 builtin/submodule--helper.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index becf686e47a..dbeafd9787d 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c

@@ -2375,6 +2375,7 @@ static void ensure_core_worktree(const char *path)
 		free(abs_path);
 		strbuf_release(&sb);
 	}
+	repo_clear(&subrepo);
 }
 
 static const char *submodule_update_type_to_label(enum submodule_update_type type)

-- 
2.37.1.1197.g7ed548b7807