$ git clone -n https://src.fedoraproject.org/rpms/kf6-qqc2-desktop-style.git /var/lib/mock/f41-build-side-1-2820453-33164/root/chroot_tmpdir/scmroot/kf6-qqc2-desktop-style
Cloning into '/var/lib/mock/f41-build-side-1-2820453-33164/root/chroot_tmpdir/scmroot/kf6-qqc2-desktop-style'...
$ git fetch origin f26fe10e8bd839b53f51a7fcebb34c5bef6ea5f8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-qqc2-desktop-style
 * [new ref]         f26fe10e8bd839b53f51a7fcebb34c5bef6ea5f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f26fe10 6.6.0