$ git clone -n https://src.fedoraproject.org/rpms/nheko.git /var/lib/mock/f41-build-side-1-3051401-38048/root/chroot_tmpdir/scmroot/nheko
Cloning into '/var/lib/mock/f41-build-side-1-3051401-38048/root/chroot_tmpdir/scmroot/nheko'...
$ git fetch origin 552fbe8b28804bb4fc3d3ef67a894278c8ff63a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nheko
 * [new ref]         552fbe8b28804bb4fc3d3ef67a894278c8ff63a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 552fbe8 Rebuild (qt6)