I have a repository hosted in Bitbucket Server. I have cloned this to my local machine and have initialized Git Flow using Sourcetree v3.0.17 (System Git v 2.21). On this first repository, I have started a feature branch using Sourcetree's built in Gitflow button. Currently in this working copy I have the feature branch checked out.
I then cloned the same repository to a different location using Sourcetree, and also initialized GitFlow on the second working copy. After initializing Gitflow on this copy (using the default names for branches as I had done with the first), the GitFlow button on the second repository shows the recommended actions as 'Finish Feature' with the Feature name reported as "Develop".