$ git clone -n https://src.fedoraproject.org/rpms/rust-cbindgen.git /var/lib/mock/f41-build-856571-167680/root/chroot_tmpdir/scmroot/rust-cbindgen
Cloning into '/var/lib/mock/f41-build-856571-167680/root/chroot_tmpdir/scmroot/rust-cbindgen'...
$ git fetch origin 6e882619c97d47111e9c4d8e64ce7e6920077b1c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cbindgen
 * [new ref]         6e882619c97d47111e9c4d8e64ce7e6920077b1c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e88261 Update to version 0.27.0; Fixes RHBZ#2303946