Merged purge code in remove, configurable transaction regpkgdb flushing.

See the NEWS file for info.

lib/plist.c

@@ -231,7 +231,7 @@ xbps_dictionary_from_metadata_plist(const char *pkgname,
 
 	if (access(plistf, R_OK) == -1) {
 		pkgd = xbps_find_virtualpkg_dict_installed(pkgname, false);
-		if (pkgd) {
+		if (prop_object_type(pkgd) == PROP_TYPE_DICTIONARY) {
 			free(plistf);
 			prop_dictionary_get_cstring_nocopy(pkgd,
 			    "pkgname", &savedpkgname);