Merge branch 'fix-pseudoboolean-copy' into 'v91-bugfix'

Fix pseudoboolean handling

See merge request integer/scip!3486

Author: GioniMexi

Diff for: CHANGELOG

@@ -31,6 +31,9 @@ Fixed bugs
 - fixed that some variable type changes were not accounted correctly in presolve of linear constraints
 - fix constraint sorting in setpp-orbitope upgrade in symmetry code
 - fixed that SCIPnodeGetConsProps() also counted bound changes from propagators
+- use original and-constraints of an untransformed pseudoboolean constraint when copying original problems to avert segmentation faults
+- sort and-constraints of a pseudoboolean constraint with respect to the resultant problem indices to avoid shuffled copies
+- treat pseudoboolean constraints as nonlinear constraints in OPB reader to prevent duplication mistakes
 
 Performance improvements
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