$ git clone -n https://src.fedoraproject.org/rpms/rust-fs_extra.git /var/lib/mock/f45-build-41730-785/root/chroot_tmpdir/scmroot/rust-fs_extra
Cloning into '/var/lib/mock/f45-build-41730-785/root/chroot_tmpdir/scmroot/rust-fs_extra'...
$ git fetch origin 5cb7800612f9649148ce4ea3f9426fe473e4531e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-fs_extra
 * [new ref]         5cb7800612f9649148ce4ea3f9426fe473e4531e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cb7800 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild