Map not respecting that the earth is round

Longitude gets increased infinitely when map is moved to the east (and decreased infinitely moving to the west)

Steps o Reproduce

1. Go to OL example at https://openlayers.org/en/latest/examples/geographic.html
2. Remember the lat/lon coordinates written on the screen
3. Move ‘around the world’ to the east until you come roughly to the same spot (easier to do if you zoom out)
4. The new coordinates should be roughly the same as the ones in point 2., but that’s not the case for longitude - it was increased by one earth roundtrip (360deg).

This behaviour occurs also when you calculate the lat/lon coordinates from view extent, for example in moveend event:

map.on('moveend', function(evt) {
  var extentLatLonCoords =
    transformExtent(evt.frameState.extent, evt.map.getView().getProjection(), 'EPSG:4326');
})

Expected behavior If you go ‘around the world’ and arrive at the same spot the calculated coordinates/extent should be the same and respect the fact that the earth is round 😄

[mike-000]

There is an internal (non-API) method https://github.com/openlayers/openlayers/blob/master/src/ol/coordinate.js#L412

[yohny]

as toLonLat() solves my issue, I’m fine with closing this just one more question - toLonLat unwraps coordinates for EPSG:4326 projection, but is there a build in way to unwrap other projections?