Manage config workflow page does not reflect actual config

The code did not properly reflect the configuration state when building
the Access Levels form, if the minimum access level was defined using
update_bug_status_threshold and set_status_threshold wass empty, showing
'viewer' for each status except 'new'.

Consequently, saving the page without changes would cause the config to
be saved with all access levels as 'viewer'.

Fixes #14496

manage_config_workflow_page.php

@@ -287,9 +287,10 @@ function access_row() {
 				}
 			}
 		} else {
-			$t_level = ( isset( $t_project_set[$t_status] ) ? $t_project_set[$t_status] : 0 );
-			$t_level_global = ( isset( $t_global_set[$t_status] ) ? $t_global_set[$t_status] : 0 );
-			$t_level_file = ( isset( $t_file_set[$t_status] ) ? $t_file_set[$t_status] : 0 );
+			$t_level_file = ( isset( $t_file_set[$t_status] ) ? $t_file_set[$t_status] : false );
+			$t_level_global = ( isset( $t_global_set[$t_status] ) ? $t_global_set[$t_status] : $t_level_file );
+			$t_level = ( isset( $t_project_set[$t_status] ) ? $t_project_set[$t_status] : $t_level_global );
+
 			$t_can_change = ( $t_access >= config_get_access( 'set_status_threshold' ) );
 			$t_colour = '';
 			if ( $t_level_global != $t_level_file ) {

manage_config_workflow_set.php

@@ -87,8 +87,8 @@
 		list( $t_from, $t_to ) = explode( ':', $t_transition );
 		$t_matrix[$t_from][$t_to] = '';
 	}
-	$t_statuses = MantisEnum::getAssocArrayIndexedByValues( config_get( 'status_enum_string' ) );
-	foreach( $t_statuses as $t_state => $t_label) {
+	$t_enum_status = MantisEnum::getAssocArrayIndexedByValues( config_get( 'status_enum_string' ) );
+	foreach( $t_enum_status as $t_state => $t_label) {
 		$t_workflow_row = '';
 		$t_default = gpc_get_int( 'default_' . $t_state );
 		if ( isset( $t_matrix[$t_state] ) && isset( $t_matrix[$t_state][$t_default] ) ) {
@@ -124,22 +124,38 @@
 	# get changes to access level to change these values
 	$f_access = gpc_get( 'status_access' );
 
+	# Build default
+	$t_file_set = config_get_global( 'set_status_threshold' );
+	$t_bug_submit_status = config_get( 'bug_submit_status' );
+	foreach ( $t_enum_status as $t_status => $t_status_label) {
+		if ( !isset( $t_file_set[$t_status] ) ) {
+			if ( $t_bug_submit_status == $t_status ) {
+				$t_file_set[$t_status] = config_get_global('report_bug_threshold');
+			} else {
+				$t_file_set[$t_status] = config_get_global('update_bug_status_threshold');
+			}
+		}
+	}
+
 	# walk through the status labels to set the status threshold
-	$t_enum_status = explode( ',', config_get( 'status_enum_string' ) );
 	$t_set_status = array();
-	foreach( $t_statuses as $t_status_id => $t_status_label) {
+	foreach( $t_enum_status as $t_status_id => $t_status_label) {
 		$f_level = gpc_get( 'access_change_' . $t_status_id );
 		if ( config_get( 'bug_submit_status' ) == $t_status_id ) {
 			if ( (int)$f_level != config_get( 'report_bug_threshold' ) ) {
 				config_set( 'report_bug_threshold', (int)$f_level, ALL_USERS, $t_project, $f_access );
 			}
+			unset( $t_file_set[$t_status_id] );
 		} else {
 			$t_set_status[$t_status_id] = (int)$f_level;
 		}
 	}
 
-	if ( ( $t_set_status != config_get( 'set_status_threshold' ) )
-			|| ( $f_access != config_get_access( 'status_enum_workflow' ) ) ) {
+	if( (  $t_set_status != $t_file_set
+		&& $t_set_status != config_get( 'set_status_threshold' )
+		)
+	|| $f_access != config_get_access( 'status_enum_workflow' )
+	) {
 		config_set( 'set_status_threshold', $t_set_status, ALL_USERS, $t_project, $f_access );
 	}
 }