$ git clone -n https://src.fedoraproject.org/rpms/mtdev.git /var/lib/mock/f40-build-2298823-56561/root/chroot_tmpdir/scmroot/mtdev
Cloning into '/var/lib/mock/f40-build-2298823-56561/root/chroot_tmpdir/scmroot/mtdev'...
$ git fetch origin f696da43b24d3b1718a386c29c1bb9f7888442ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mtdev
 * [new ref]         f696da43b24d3b1718a386c29c1bb9f7888442ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f696da4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild