$ git clone -n https://src.fedoraproject.org/rpms/powerline-go.git /var/lib/mock/f42-build-866962-174535/root/chroot_tmpdir/scmroot/powerline-go
Cloning into '/var/lib/mock/f42-build-866962-174535/root/chroot_tmpdir/scmroot/powerline-go'...
$ git fetch origin ff335c4e3cba904eb0119cfcac4f1e57da4dafdf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/powerline-go
 * [new ref]         ff335c4e3cba904eb0119cfcac4f1e57da4dafdf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff335c4 Update to 1.24 - Closes rhbz#2192057