Redmine

During backlog grooming I need to add new value of a custom field to a number of issues.

The problem is that existing values in a custom field are overwritten if I add a new value by using bulk edit.

That effectively makes bulk edit useless on lists with multiple selections or values.

Steps to reproduce:

1. Click checkmarks of a number issues, with multiple values in a custom field, for bulk edit
2. Right-click the checkbox of a random issue among the issues marked for bulk edit
3. Click edit
4. Click the custom field value to be added across the selected issues
5. Click submit
6. Observe that only the newly selected value in the custom field is displayed as all earlier selected values have been overwritten

Suggested solution.

Bulk edit should:

1. add new values without overwriting exisiting values
2. make it possible to clear existing values on fields with multiple values/selections