Apparent error in SQL syntax

[nwinesett]

I am using latest devel branch as of May 5, 2020.

When making a new project and importing tasks from my template (with "scale tasks" checked), I was directed to the following error page: https://...../index.php?m=projects and the following excerpts:

ERROR: /home//projects/classes/query.class.php(691): query failed(DELETE FROM dotp_user_tasks WHERE task_id = ) - error was: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
Backtrace:
0 /home//projects/classes/query.class.php:691 dprint('/home//projects/classes/query.class.php',691,0,'query failed(DELETE FROM dotp_user_tasks WHERE task_id = ) - error was: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1')
1 /home//projects/modules/tasks/tasks.class.php:480 exec()
2 /home//projects/modules/projects/projects.class.php:211 copy(14,0)
3 /home//projects/modules/projects/do_project_aed.php:61 importTasks(1,1)
4 /home//projects/index.php:241 require('/home//projects/modules/projects/do_project_aed.php')

ERROR: /home//projects/classes/query.class.php(691): query failed(DELETE FROM dotp_task_dependencies WHERE dependencies_task_id=) - error was: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
Backtrace:
0 /home//projects/classes/query.class.php:691 dprint('/home//projects/classes/query.class.php',691,0,'query failed(DELETE FROM dotp_task_dependencies WHERE dependencies_task_id=) - error was: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1')
1 /home//projects/modules/tasks/tasks.class.php:863 exec()
2 /home//projects/modules/tasks/tasks.class.php:497 updateDependencies('')
3 /home//projects/modules/projects/projects.class.php:211 copy(14,0)
4 /home//projects/modules/projects/do_project_aed.php:61 importTasks(1,1)
5 /home//projects/index.php:241 require('/home/***/projects/modules/projects/do_project_aed.php')

Warning: Cannot modify header information - headers already sent by (output started at /home//projects/includes/main_functions.php:624) in /home//projects/classes/ui.class.php on line 585

[ajdonnison]

I can't duplicate this - and it would require that the creation of the task itself failed to trigger it not having an ID. This is not something I've seen before as the copy uses exactly the same insert logic that creating a task from scratch does. I'm wondering if there is some database corruption going on here. Do you know how to look into the database and check if the task was copied to the new project?