On the one hand, this should not be spoofed and she be typically auto-set by MantisBT. However, for scenarios like migration tools, it makes sense to be able to set this and be honored. Hence, I think that we should honor it based on a configurable access level.

Thanks. I'm working on a migration tool, so to myself (and users of the tool), it would be useful.

I'm using this change on 1.2.0 to fix that behavior:

diff -r mantisbt-1.2.0/api/soap/mc_issue_api.php mantisbt-1.2.0-wepl/api/soap/mc_issue_api.php
515c515,516
< $t_version = $p_issue['version'];

  $t_date_submitted = $p_issue['date_submitted'];
  $t_version = isset($p_issue['version']) ? $p_issue['version'] : '';

725c729
< $t_bug_data->date_submitted = isset( $v_date_submitted ) ? $v_date_submitted : '';

$t_bug_data->date_submitted = $t_date_submitted;

diff -r mantisbt-1.2.0/core/bug_api.php mantisbt-1.2.0-wepl/core/bug_api.php
349a350,351

  $c_date_submitted = !is_blank( $this->date_submitted ) ? $this->date_submitted : db_now();

369c371
< db_query_bound( $query, Array( $this->project_id, $this->reporter_id, $this->handler_id, $this->duplicate_id, $this->priority, $this->severity, $this->reproducibility, $t_status, $this->resolution, $this->projection, $this->category_id, db_now(), db_now(), $this->eta, $t_text_id, $this->os, $this->os_build, $this->platform, $this->version, $this->build, $this->profile_id, $this->summary, $this->view_state, $this->sponsorship_total, $this->sticky, $this->fixed_in_version, $this->target_version, $this->due_date ) );

  db_query_bound( $query, Array( $this->project_id, $this->reporter_id, $this->handler_id, $this->duplicate_id, $this->priority, $this->severity, $this->reproducibility, $t_status, $this->resolution, $this->projection, $this->category_id, $c_date_submitted, db_now(), $this->eta, $t_text_id, $this->os, $this->os_build, $this->platform, $this->version, $this->build, $this->profile_id, $this->summary, $this->view_state, $this->sponsorship_total, $this->sticky, $this->fixed_in_version, $this->target_version, $this->due_date ) );

I'm facing this issue in Mantis BT version 1.2.9. Is there any plan to fix this issue?
The solution from Wepl is still working.

It would help if someone can implement this on a fork in github and send a pull request. I would like this feature to be controlled by an access level (migration_access_level or something similar) that is set to ADMINISTRATOR by default.