Ensure culling changes layer names #11903
Merged
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This is pretty much an internal thing but the way HLGs are performing culling is dangerous and makes working with the API more difficult than it has to.
Culling does mutate layers but the internal tracking does not change the layer name to reflect this. Merging culled layers with
HighlevelGraph.merge
can therefore produce corrupted graphs.I stumbled over this while fixing #11901