Win, #519: FIX with_rw_directory() to remove read-only dirs

+ Stop using gitdb's respective helper.
+ Fix files chmod(555) which CANNOT DELETE on Windows (but do on Linux).

1 files changed, 4 insertions, 0 deletions

diff --git a/git/cmd.py b/git/cmd.py
index 69844366..fb94c200 100644
--- a/git/cmd.py
+++ b/git/cmd.py
@@ -1013,6 +1013,10 @@ class Git(LazyMixin):
         Currently persistent commands will be interrupted.
 
         :return: self"""
+        for cmd in (self.cat_file_all, self.cat_file_header):
+            if cmd:
+                cmd.__del__()
+
         self.cat_file_all = None
         self.cat_file_header = None
         return self