$ git clone -n https://src.fedoraproject.org/rpms/nickle.git /var/lib/mock/f40-build-795294-140106/root/chroot_tmpdir/scmroot/nickle
Cloning into '/var/lib/mock/f40-build-795294-140106/root/chroot_tmpdir/scmroot/nickle'...
$ git fetch origin 565fb03cff8e96e2196023b2052aeeebd37c48c2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nickle
 * [new ref]         565fb03cff8e96e2196023b2052aeeebd37c48c2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 565fb03 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild