I fixed this in my local copy of Mantis (well, UMantis actually) by adding "source_query_id" to the filter_string whenever a filter is selected. Then when the filter-selection menu is displayed, the OPTION values are compared and the "selected" value is set.

I made the following two changes:

./view_all_set.php (approximatly around line 433), inserted:

    $t_setting_arr['source_query_id'] = $f_source_query_id;

./core/filter_api.php (approximately around line 2028), changed to:

                                    $t_setting_arr = filter_deserialize( filter_db_get_filter( gpc_get_cookie( config_get( 'view_all_cookie' ), '' ) ) );
                                    $last_known_query_id = $t_setting_arr['source_query_id'];
                                    foreach( $t_stored_queries_arr as $t_query_id => $t_query_name ) {
                                            PRINT '<option value="' . $t_query_id . '" ' . ($t_query_id == $last_known_query_id ? "selected" : "") . '>' . $t_query_name . '</option>';
                                    }

To be sure, I'm an Mantis novice and there may be a better way of doing this. But it seems to be working for me.

Eddie

Same issue as 0006491 and 0006873. 0006491 has the best discussion of issue.

This issue is not reproducible with the current version of MantisBT.

We recommend that you upgrade to the latest stable version [1]; if after doing so the problem persists, do not hesitate to reopen the issue, with additional relevant information.

[1] https://sourceforge.net/projects/mantisbt/files/mantis-stable/