The commonly use tab for Fisheye/Stash commits to be linked together with an issue in JIRA would be the Source tab. However, the Commits tab is telling the user that you would need to configure Fisheye when looking into the Commits tab.

To reproduce using Fisheye

1. Configure JIRA and Fisheye
2. Configure Application Link between the two
3. Create a DEMO project in JIRA
4. Commits to Fisheye with issuekey DEMO-1
5. Open both tabs to see the following

Source tab:

Commits tab:

Expected behaviour:
JIRA should mention that Fisheye / Stash are already configured and if the commits are only visible in the Source tab, it should point to the right tab.