state, update: fixes

src/state.c

@@ -502,7 +502,9 @@ int apk_state_lock_name(struct apk_state *state,
 	}
 
 	/* If the chosen package is installed, all is done here */
-	if (oldpkg == newpkg && !(newpkg->name->flags & APK_NAME_REINSTALL))
+	if (oldpkg == newpkg &&
+	    (newpkg == NULL ||
+	     !(newpkg->name->flags & APK_NAME_REINSTALL)))
 		return 0;
 
 	/* Track change */

src/update.c

@@ -23,7 +23,7 @@ static int update_main(void *ctx, struct apk_database *db, int argc, char **argv
 static struct apk_applet apk_update = {
 	.name = "update",
 	.help = "Update repository indexes from all remote repositories.",
-	.open_flags = APK_OPENF_READ | APK_OPENF_NO_STATE,
+	.open_flags = APK_OPENF_WRITE,
 	.forced_flags = APK_UPDATE_CACHE,
 	.main = update_main,
 };