Stop doing expensive package re-fetch on upgrade https://forum.virtualmin.com/t/updates-webmin-virtualmin-hangs-for-a-long-time/118662

package-updates/postinstall.pl

@@ -1,15 +0,0 @@
-
-do 'package-updates-lib.pl';
-
-sub module_install
-{
-# Force clear all caches, as collected information may have changed
-&flush_package_caches();
-
-if ($software::update_system ne 'yum' &&
-    !&foreign_check("security-updates")) {
-	# Re-generate cache of possible packages
-	&list_possible_updates();
-	}
-}
-