$ git clone -n https://src.fedoraproject.org/rpms/rust-cmake.git /var/lib/mock/f45-build-40851-776/root/chroot_tmpdir/scmroot/rust-cmake
Cloning into '/var/lib/mock/f45-build-40851-776/root/chroot_tmpdir/scmroot/rust-cmake'...
$ git fetch origin 67ffe4420d7545ebf1daa645429be4d7b6e65d62:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cmake
 * [new ref]         67ffe4420d7545ebf1daa645429be4d7b6e65d62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 67ffe44 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild