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-rw-r--r--src/buildstream/_loader/loader.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/buildstream/_loader/loader.py b/src/buildstream/_loader/loader.py
index 3032f9036..023955b5d 100644
--- a/src/buildstream/_loader/loader.py
+++ b/src/buildstream/_loader/loader.py
@@ -671,6 +671,9 @@ class Loader:
# Optimization for junctions with a single local source
basedir = sources[0]._get_local_path()
else:
+ # Stage sources
+ element._set_required()
+
# Note: We use _KeyStrength.WEAK here because junctions
# cannot have dependencies, therefore the keys are
# equivalent.