$ git clone -n https://src.fedoraproject.org/rpms/rust-gstreamer-audio-sys.git /var/lib/mock/f40-build-2713239-72124/root/chroot_tmpdir/scmroot/rust-gstreamer-audio-sys
Cloning into '/var/lib/mock/f40-build-2713239-72124/root/chroot_tmpdir/scmroot/rust-gstreamer-audio-sys'...
$ git fetch origin 02b8df48c9020e4ce651af24bd2c384b332cd614:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gstreamer-audio-sys
 * [new ref]         02b8df48c9020e4ce651af24bd2c384b332cd614 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 02b8df4 Update to version 0.22.0; Fixes RHBZ#2263349