Coordinate precision issue

Setup and configuration

{
    "SMWSQLStore": {
        "mysql": "10.4.11-MariaDB"
    },
    "smw": "3.2.0-alpha",
    "mediawiki": "1.34.0",
    "php": "7.4.1"
}

Maps | 7.15.6

Issue

1. Adding a wiki text annotation with [[Geographic coordinates::40.71449, -74.00713]] (with a discrete precision). For context, those data are imported and not something that can be changed.

2. Data stored in the smw_di_coords table appears as:

3. Building a DataValue representation for the above item will return 40° 42' 52.16" N, 74° 0' 25.67" W in zero degree mark format.

4. Now, when used as part of a query, {{#ask: [[Geographic coordinates::40° 42' 52.16" N, 74° 0' 25.67" W]] ...}} no results will return because those coordinates are transformed into o_lon = '-74.007130555556' and o_lat = '40.714488888889 which has a different precision than the data stored in (1).

So, the issue here is that [[Geographic coordinates::40.71449, -74.00713]] turns into [[Geographic coordinates::40° 42' 52.16" N, 74° 0' 25.67" W]] which when used as part of a query will have a different precision than the original stored data.

Part of the actual SQL query:

AS t12 ON t2.s_id=t12.s_id INNER JOIN smw_di_coordsAS t15 ON t2.s_id=t15.s_id) ON t0.smw_id=t2.s_id WHERE (t2.o_id='303185' AND (t4.p_id='303180') AND (t7.p_id='303186') AND (t9.p_id='303182') AND (t12.p_id='303180' AND t12.o_id='303179') AND ((t15.o_lat = '40.714488888889' AND t15.o_lon = '-74.007130555556') AND t15.p_id='303186')) AND t0.smw_iw!=':smw' AND t0.smw_iw!=':smw-delete' AND t0.smw_iw!=':smw-redi' LIMIT 251

Start by tracing how the coordinate DataValue representation is converted for an #ask query and compared with values in the smw_di_coords table. Reproduce the example using the stated coordinate values, then verify that the query uses precision compatible with the stored latitude and longitude so the expected result is returned.