$ git clone -n https://src.fedoraproject.org/rpms/golang-github-jessevdk-flags.git /var/lib/mock/f40-build-2287912-55757/root/chroot_tmpdir/scmroot/golang-github-jessevdk-flags
Cloning into '/var/lib/mock/f40-build-2287912-55757/root/chroot_tmpdir/scmroot/golang-github-jessevdk-flags'...
$ git fetch origin ea7d475bb0bfcd53fa9600577e220044bf41ad7a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-jessevdk-flags
 * [new ref]         ea7d475bb0bfcd53fa9600577e220044bf41ad7a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ea7d475 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild