$ git clone -n https://src.fedoraproject.org/rpms/qrca.git /var/lib/mock/f42-build-side-1-3505961-45995/root/chroot_tmpdir/scmroot/qrca
Cloning into '/var/lib/mock/f42-build-side-1-3505961-45995/root/chroot_tmpdir/scmroot/qrca'...
$ git fetch origin a254e643d5b5f32f5229298feaa8428458abacf1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qrca
 * [new ref]         a254e643d5b5f32f5229298feaa8428458abacf1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a254e64 25.04.0