$ git clone -n https://src.fedoraproject.org/rpms/python-dbusmock.git /var/lib/mock/f39-build-2174098-51065/root/chroot_tmpdir/scmroot/python-dbusmock
Cloning into '/var/lib/mock/f39-build-2174098-51065/root/chroot_tmpdir/scmroot/python-dbusmock'...
$ git fetch origin 2d44f7c9e4819694d174815c4483615fd89d0f8e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-dbusmock
 * [new ref]         2d44f7c9e4819694d174815c4483615fd89d0f8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2d44f7c Update to 0.30.2