Same issue is in Jdev 12.1.3
Oracle JDeveloper 12c 188.8.131.52.0
Studio Edition Version 184.108.40.206.0
IDE Version: 220.127.116.11.41.140521.1008
Product ID: oracle.jdeveloper
Product Version: 18.104.22.168.41.140521.1008
Yes, SQL Developer is based on the JDeveloper IDE. In turn, JDeveloper picks up some SQL Developer code.
In either product, just go to Help > About > Extensions, then use the search widget to view which extensions are shared. For example,
1. In JDeveloper, enter oracle.sqldev
2. In SQL Developer, enter oracle.ide or oracle.jdev
SqlDeveloper 22.214.171.124.84. Bug is exist in this version still
The bug is still open. I've increased the severity and the priority.