$ git clone -n https://src.fedoraproject.org/rpms/libica.git /var/lib/mock/f40-build-792954-138680/root/chroot_tmpdir/scmroot/libica
Cloning into '/var/lib/mock/f40-build-792954-138680/root/chroot_tmpdir/scmroot/libica'...
$ git fetch origin b62310e450e6d2a1c2903dd4c8f8db0cefcdfcba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libica
 * [new ref]         b62310e450e6d2a1c2903dd4c8f8db0cefcdfcba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b62310e - updated to 4.3.0