$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mattn-tty.git /var/lib/mock/f40-build-2288263-55775/root/chroot_tmpdir/scmroot/golang-github-mattn-tty
Cloning into '/var/lib/mock/f40-build-2288263-55775/root/chroot_tmpdir/scmroot/golang-github-mattn-tty'...
$ git fetch origin bec03ae86f8d8aa5927caca45bd649d03d72199f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mattn-tty
 * [new ref]         bec03ae86f8d8aa5927caca45bd649d03d72199f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bec03ae Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild