$ git clone -n https://src.fedoraproject.org/rpms/nomarch.git /var/lib/mock/f40-build-803204-144204/root/chroot_tmpdir/scmroot/nomarch
Cloning into '/var/lib/mock/f40-build-803204-144204/root/chroot_tmpdir/scmroot/nomarch'...
$ git fetch origin 8e5a2f142d28bf78f19a9bc4390426f469b65234:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nomarch
 * [new ref]         8e5a2f142d28bf78f19a9bc4390426f469b65234 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e5a2f1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild