--- libdnf-0.31.0/libdnf/goal/Goal.cpp.orig	2019-06-23 18:33:29.205434790 +0200
+++ libdnf-0.31.0/libdnf/goal/Goal.cpp	2019-06-23 19:33:44.093032736 +0200
@@ -1185,6 +1185,8 @@
     solver_set_flag(solv, SOLVER_FLAG_ALLOW_VENDORCHANGE, 1);
     /* don't erase packages that are no longer in repo during distupgrade */
     solver_set_flag(solv, SOLVER_FLAG_KEEP_ORPHANS, 1);
+    /* x86_64: disable inferior arch check to allow x86 packages cohexistance */
+    solver_set_flag(solv, SOLVER_FLAG_NO_INFARCHCHECK, 1);
     /* no arch change for forcebest */
     solver_set_flag(solv, SOLVER_FLAG_BEST_OBEY_POLICY, 1);
     /* support package splits via obsoletes */