$ git clone -n https://src.fedoraproject.org/rpms/rust-schemafy_lib.git /var/lib/mock/f45-build-44666-816/root/chroot_tmpdir/scmroot/rust-schemafy_lib
Cloning into '/var/lib/mock/f45-build-44666-816/root/chroot_tmpdir/scmroot/rust-schemafy_lib'...
$ git fetch origin 894b22c2d09db08eeb9c28bd94f78b098e5ba313:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-schemafy_lib
 * [new ref]         894b22c2d09db08eeb9c28bd94f78b098e5ba313 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 894b22c Regenerate with rust2rpm v28