$ git clone -n https://src.fedoraproject.org/rpms/gstream.git /var/lib/mock/f40-build-790070-136272/root/chroot_tmpdir/scmroot/gstream
Cloning into '/var/lib/mock/f40-build-790070-136272/root/chroot_tmpdir/scmroot/gstream'...
$ git fetch origin 0fd5d76d1d7633c3dde16ed25d8df40b9d64792d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gstream
 * [new ref]         0fd5d76d1d7633c3dde16ed25d8df40b9d64792d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0fd5d76 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild