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Safer check for extruder vs. global

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Because it might be an empty string.

Contributes to issue CURA-5054.
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Ghostkeeper 2018-03-09 16:07:54 +01:00
parent b797ac1a15
commit 3a832d66a9
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2
cura/Machines/QualityChangesGroup.py
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@ -16,7 +16,7 @@ class QualityChangesGroup(QualityGroup):
def addNode(self, node: "QualityNode"):
extruder_position = node.metadata.get("position")
if not extruder_position: #Then we're a global quality changes profile.
if extruder_position is None: #Then we're a global quality changes profile.
if self.node_for_global is not None:
raise RuntimeError("{group} tries to overwrite the existing node_for_global {original_global} with {new_global}".format(group = self, original_global = self.node_for_global, new_global = node))
self.node_for_global = node