$ git clone -n https://src.fedoraproject.org/rpms/mtdev.git /var/lib/mock/f42-build-869259-176468/root/chroot_tmpdir/scmroot/mtdev
Cloning into '/var/lib/mock/f42-build-869259-176468/root/chroot_tmpdir/scmroot/mtdev'...
$ git fetch origin 9cc5fe5627d9daa8c3b60ed7d2d501c9870c60de:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mtdev
 * [new ref]         9cc5fe5627d9daa8c3b60ed7d2d501c9870c60de -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cc5fe5 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild