Create Issue modal window used by Bitbucket spins when Jira returns an error

Issue Summary

The Create Issue modal window used by BitBucket spins when Jira returns an error, e.g. during workflow validation

Steps to Reproduce

• Environment used for the test:
  1. BitBucket 6.10.0 and Jira 8.13.9
  2. BitBucket 8.2.0 and Jira 8.13.9, Jira 9.4.3

• Edit a workflow and add validation in the Create Transition, using Jira 9.4.3
  For instance, install the plugin JSU and check if the Description field was filled;
• On BitBucket side, open the Create Issue modal fill the required fields but do not fill in the Description field;

Expected Results

Bitbucket 6.10 does show the error message

Actual Results

However BtBucket 8.2.0 spins;

Har file shows that Jira returned the validation message.

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available