$ git clone -n https://src.fedoraproject.org/rpms/rust-tracing_chromium.git /var/lib/mock/f38-build-side-43-rust-devel-1413455-31444/root/chroot_tmpdir/scmroot/rust-tracing_chromium
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1413455-31444/root/chroot_tmpdir/scmroot/rust-tracing_chromium'...
$ git fetch origin 791c72c2b90568a30b6490454ec5ae4826dad1e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tracing_chromium
 * [new ref]         791c72c2b90568a30b6490454ec5ae4826dad1e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 791c72c Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild