$ git clone -n https://src.fedoraproject.org/rpms/golang-github-ema-qdisc.git /var/lib/mock/f40-build-2281540-55478/root/chroot_tmpdir/scmroot/golang-github-ema-qdisc
Cloning into '/var/lib/mock/f40-build-2281540-55478/root/chroot_tmpdir/scmroot/golang-github-ema-qdisc'...
$ git fetch origin 18ee7fdd874dda121a870512284a904d2f73da0b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-ema-qdisc
 * [new ref]         18ee7fdd874dda121a870512284a904d2f73da0b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18ee7fd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild