$ git clone -n https://src.fedoraproject.org/rpms/rust-gio-sys.git /var/lib/mock/f45-build-41859-786/root/chroot_tmpdir/scmroot/rust-gio-sys
Cloning into '/var/lib/mock/f45-build-41859-786/root/chroot_tmpdir/scmroot/rust-gio-sys'...
$ git fetch origin 5c5693e3cd29c09359b398de73c9a6d6d3e5d538:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gio-sys
 * [new ref]         5c5693e3cd29c09359b398de73c9a6d6d3e5d538 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c5693e Update to version 0.22.9; Fixes RHBZ#2526044