Do not try to copy weight events when promoting an issue

What does this MR do?

When promoting an issue to an epic we copy over as much information as possible, but we need to skip weight events as epics do not support weights, which results sometimes in a FK violation and also in populating random issues with weights from thin air.


Does this MR meet the acceptance criteria?


Availability and Testing


If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

  • Label as security and @ mention @gitlab-com/gl-security/appsec
  • The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
  • Security reports checked/validated by a reviewer from the AppSec team

re #215549 (closed)

Edited by Alexandru Croitor