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-rw-r--r--morphlib/cachekeycomputer.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/morphlib/cachekeycomputer.py b/morphlib/cachekeycomputer.py
index 33eef082..fd40dc38 100644
--- a/morphlib/cachekeycomputer.py
+++ b/morphlib/cachekeycomputer.py
@@ -115,6 +115,9 @@ class CacheKeyComputer(object):
# Disregard all fields of a morphology that aren't important
ignored_fields = (
'description', # purely cosmetic, doesn't change builds
+ # Configuration extensions don't run at build time, therefore
+ # they don't have to be included in the cache key.
+ 'configuration-extensions',
# The following are used to determine dependencies,
# so are already handled by the 'kids' field.
'strata', 'build-depends', 'chunks',