When deleting a tag, remove its key from the cache too.

Many thanks to Antti Siira for spotting the issue and proposing a patch.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/pyexiv2/metadata.py b/src/pyexiv2/metadata.py
index d5aee36..fea6a6f 100644
--- a/src/pyexiv2/metadata.py
+++ b/src/pyexiv2/metadata.py
@@ -273,6 +273,8 @@ class ImageMetadata(object):
         except KeyError:
             # The tag was not cached.
             pass
+        if self._keys['exif'] is not None:
+            self._keys['exif'].remove(key)
 
     def _delete_iptc_tag(self, key):
         # Delete an IPTC tag.
@@ -285,6 +287,8 @@ class ImageMetadata(object):
         except KeyError:
             # The tag was not cached.
             pass
+        if self._keys['iptc'] is not None:
+            self._keys['iptc'].remove(key)
 
     def _delete_xmp_tag(self, key):
         # Delete an XMP tag.
@@ -297,6 +301,8 @@ class ImageMetadata(object):
         except KeyError:
             # The tag was not cached.
             pass
+        if self._keys['xmp'] is not None:
+            self._keys['xmp'].remove(key)
 
     def __delitem__(self, key):
         """