Fix pickling of graphs with contracted nodes (backport #1505) #1507
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* set node_removed if nodes contracted * format (cherry picked from commit 28b1e9c)
IvanIsCoding
approved these changes
Sep 16, 2025
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Fixes #1503. Node contraction removes the contracted nodes but
self.node_removedwasn't being set. Serialisation works differently depending on the flag. The failure reported in the issue was down to the wrong value of this flag.This is an automatic backport of pull request #1505 done by Mergify.