$ git clone -n https://src.fedoraproject.org/rpms/dolphin-plugins.git /var/lib/mock/f42-build-side-1-3562205-46722/root/chroot_tmpdir/scmroot/dolphin-plugins
Cloning into '/var/lib/mock/f42-build-side-1-3562205-46722/root/chroot_tmpdir/scmroot/dolphin-plugins'...
$ git fetch origin 3b08c32c5470521404ac04c5087b6c1bfaf0a824:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dolphin-plugins
 * [new ref]         3b08c32c5470521404ac04c5087b6c1bfaf0a824 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b08c32 25.04.2