$ git clone -n https://src.fedoraproject.org/rpms/kf6-qqc2-desktop-style.git /var/lib/mock/f40-build-742542-110790/root/chroot_tmpdir/scmroot/kf6-qqc2-desktop-style
Cloning into '/var/lib/mock/f40-build-742542-110790/root/chroot_tmpdir/scmroot/kf6-qqc2-desktop-style'...
$ git fetch origin 2b884a70782962bf8d7eba912974c33ee6454819:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-qqc2-desktop-style
 * [new ref]         2b884a70782962bf8d7eba912974c33ee6454819 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b884a7 5.245.0