$ git clone -n https://src.fedoraproject.org/rpms/playerctl.git /var/lib/mock/f45-build-28696-632/root/chroot_tmpdir/scmroot/playerctl
Cloning into '/var/lib/mock/f45-build-28696-632/root/chroot_tmpdir/scmroot/playerctl'...
$ git fetch origin 8adeed4e273a3b21d34543101aac1b65ce8b4562:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/playerctl
 * [new ref]         8adeed4e273a3b21d34543101aac1b65ce8b4562 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8adeed4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild