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-rw-r--r--lib/bb/siggen.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/bb/siggen.py b/lib/bb/siggen.py
index 96807c46c..ffd8fcaf3 100644
--- a/lib/bb/siggen.py
+++ b/lib/bb/siggen.py
@@ -515,6 +515,10 @@ class SignatureGeneratorUniHashMixIn(object):
if self.setscenetasks and tid not in self.setscenetasks:
return
+ # This can happen if locked sigs are in action. Detect and just abort
+ if taskhash != self.taskhash[tid]:
+ return
+
# Sanity checks
cache_unihash = self._get_unihash(tid, checkkey=taskhash)
if cache_unihash is None: