$ git clone -n https://src.fedoraproject.org/rpms/atomic-queue.git /var/lib/mock/f40-build-2586199-62434/root/chroot_tmpdir/scmroot/atomic-queue
Cloning into '/var/lib/mock/f40-build-2586199-62434/root/chroot_tmpdir/scmroot/atomic-queue'...
$ git fetch origin b3d102c74400fc49356eddcbcb373b791cfe1e3f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/atomic-queue
 * [new ref]         b3d102c74400fc49356eddcbcb373b791cfe1e3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3d102c Update to 1.6.3: Fixes C++20 compile errors