$ git clone -n https://src.fedoraproject.org/rpms/gnome-builder.git /var/lib/mock/f38-build-side-42-init-devel-657562-26596/root/chroot_tmpdir/scmroot/gnome-builder
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-657562-26596/root/chroot_tmpdir/scmroot/gnome-builder'...
$ git fetch origin bebc6b10f16d50d1be0bfb801a3fb7fd1153d929:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-builder
 * [new ref]         bebc6b10f16d50d1be0bfb801a3fb7fd1153d929 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bebc6b1 Update to 44.1 (#2159893)