mantisbt/mantisbt — pull request #41 by vincentsels (2012-02-05 17:57:47+00:00)
Title: #0013180: Url template custom field

By choosing custom field type 'Template', you can define a template value with a placeholder ({0}) in the 'Default value' field. Upon entering a value for this custom field, it will be inserted in the template's placeholder. Links will be interpreted.

If this solution gets approved, I'll also update the manual to include this.