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-rw-r--r--pym/_emerge/__init__.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py
index d2ac88901..ad9a05c86 100644
--- a/pym/_emerge/__init__.py
+++ b/pym/_emerge/__init__.py
@@ -3178,7 +3178,7 @@ class depgraph(object):
# If blocker data from the graph is available, use
# it to validate the cache and update the cache if
# it seems invalid.
- if blocker_data and \
+ if blocker_data is not None and \
blockers is not None:
if not blockers.symmetric_difference(
blocker_data.atoms):