$ git clone -n https://src.fedoraproject.org/rpms/alsa-tools.git /var/lib/mock/f42-build-side-1-3498657-45963/root/chroot_tmpdir/scmroot/alsa-tools
Cloning into '/var/lib/mock/f42-build-side-1-3498657-45963/root/chroot_tmpdir/scmroot/alsa-tools'...
$ git fetch origin 97bc8c8cc5d086b3301a806f5a7554ec9ea576f4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/alsa-tools
 * [new ref]         97bc8c8cc5d086b3301a806f5a7554ec9ea576f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97bc8c8 update to 1.2.14