$ git clone -n https://src.fedoraproject.org/rpms/rust-glib-sys0.17.git /var/lib/mock/f38-build-side-43-rust-devel-1420894-31463/root/chroot_tmpdir/scmroot/rust-glib-sys0.17
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1420894-31463/root/chroot_tmpdir/scmroot/rust-glib-sys0.17'...
$ git fetch origin 00f6630204922c98df254919ee1fce7a2d45861e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-glib-sys0.17
 * [new ref]         00f6630204922c98df254919ee1fce7a2d45861e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 00f6630 Initial import (glib-sys 0.17 compat package)