$ git clone -n https://src.fedoraproject.org/rpms/rust-graphene-sys.git /var/lib/mock/f45-build-42091-788/root/chroot_tmpdir/scmroot/rust-graphene-sys
Cloning into '/var/lib/mock/f45-build-42091-788/root/chroot_tmpdir/scmroot/rust-graphene-sys'...
$ git fetch origin 509fcb97776b2ec4816ee9b9fa78f50790b51e44:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-graphene-sys
 * [new ref]         509fcb97776b2ec4816ee9b9fa78f50790b51e44 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 509fcb9 Update to version 0.22.9; Fixes RHBZ#2526050