$ git clone -n https://src.fedoraproject.org/rpms/v-hacd.git /var/lib/mock/f40-build-794914-139804/root/chroot_tmpdir/scmroot/v-hacd
Cloning into '/var/lib/mock/f40-build-794914-139804/root/chroot_tmpdir/scmroot/v-hacd'...
$ git fetch origin 1b4788a982ec2d8225aa2d6646a36df3b2a263b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/v-hacd
 * [new ref]         1b4788a982ec2d8225aa2d6646a36df3b2a263b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b4788a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild