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-rw-r--r--mail/src/leap/mail/imap/memorystore.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/mail/src/leap/mail/imap/memorystore.py b/mail/src/leap/mail/imap/memorystore.py
index 2d1f95b..f23a234 100644
--- a/mail/src/leap/mail/imap/memorystore.py
+++ b/mail/src/leap/mail/imap/memorystore.py
@@ -889,7 +889,8 @@ class MemoryStore(object):
:rtype: generator
"""
gm = self.get_message
- new = [gm(*key, dirtystate=DirtyState.new) for key in self._new]
+ # need to freeze, set can change during iteration
+ new = [gm(*key, dirtystate=DirtyState.new) for key in tuple(self._new)]
# move content from new set to the queue
self._new_queue.update(self._new)
self._new.difference_update(self._new)
@@ -903,8 +904,9 @@ class MemoryStore(object):
:rtype: generator
"""
gm = self.get_message
+ # need to freeze, set can change during iteration
dirty = [gm(*key, flags_only=True, dirtystate=DirtyState.dirty)
- for key in self._dirty]
+ for key in tuple(self._dirty)]
# move content from new and dirty sets to the queue
self._dirty_queue.update(self._dirty)