WIP/RFC: Do not call SCIPincludeObjExprhdlr in exprCopyhdlrObj

src/objscip/objexprhdlr.cpp (exprCopyhdlrObj): Comment out the call to
SCIPincludeObjExprhdlr because this is called from the Java code.

See scipopt#149 (comment) for
details.

TODO: This is a quick hack to fix the double free. Find a solution that
is acceptable upstream and gets applied consistently also to constraint
handlers etc.

Author: kkofler

src/objscip/objexprhdlr.cpp

@@ -76,7 +76,7 @@ SCIP_DECL_EXPRCOPYHDLR(exprCopyhdlrObj)
       newobjexprhdlr = dynamic_cast<scip::ObjExprhdlr*> (exprhdlrdata->objexprhdlr->clone(scip));
 
       /* call include method of expression handler object */
-      SCIP_CALL( SCIPincludeObjExprhdlr(scip, newobjexprhdlr, TRUE) );
+      //SCIP_CALL( SCIPincludeObjExprhdlr(scip, newobjexprhdlr, TRUE) );
    }
 
    return SCIP_OKAY;