$ git clone -n https://src.fedoraproject.org/rpms/miniaudio.git /var/lib/mock/f38-build-side-42-init-devel-612642-26285/root/chroot_tmpdir/scmroot/miniaudio
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-612642-26285/root/chroot_tmpdir/scmroot/miniaudio'...
$ git fetch origin d1e9ea773f159f8bd9ed9b6abe2d3c13cda28da9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/miniaudio
 * [new ref]         d1e9ea773f159f8bd9ed9b6abe2d3c13cda28da9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1e9ea7 initial package build