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Don't crash if CuraStackBuilder failed to create a stack

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If it failed to create a global stack, the extruder_stack_dict variable would not be defined, and Cura crashes. It may fail to create a stack because of an indexerror in a malformed project file.

Fixes Sentry issue CURA-137.
This commit is contained in:
Ghostkeeper 2020-08-10 11:16:07 +02:00
parent ba0efb82bc
commit fc6ea28352
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1 changed files with 14 additions and 13 deletions
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plugins/3MFReader/ThreeMFWorkspaceReader.py
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@ -758,6 +758,7 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
Job.yieldThread()
QCoreApplication.processEvents() # Ensure that the GUI does not freeze.
if global_stack:
# Handle quality changes if any
self._processQualityChanges(global_stack)