How to create a git-branch in new browser tag from a task page with active filter?

[Pascal Link]

I work a lot with filters. Starting a new task ... my workflow is following: 

1. open filter list
2. navigate task item page
3. now the filter is referenced by url-parameter "filter=1234" in the adressbar
4. starting task with button on the task item page
5. now need to create a git branch...
6. ... the "create branch" link includes url parameter "filter" and ended in modal task with the message "null.prompt"
7. removing the url parameter "filter=1234" resolves the problem

My target is to create a git branch in a new browser tab (to keep task item page opened) what can i do instead? Or is this just a jira related bug?