$ git clone -n https://src.fedoraproject.org/rpms/rust-cssparser0.29.git /var/lib/mock/f39-build-1942689-43164/root/chroot_tmpdir/scmroot/rust-cssparser0.29
Cloning into '/var/lib/mock/f39-build-1942689-43164/root/chroot_tmpdir/scmroot/rust-cssparser0.29'...
$ git fetch origin 8993cf9c66f91ffcd377a3588dcb5360eab62ccc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cssparser0.29
 * [new ref]         8993cf9c66f91ffcd377a3588dcb5360eab62ccc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8993cf9 Initial import (cssparser 0.29 compat package)