FIX - WMS has issue when combining two different coverages in a WMS style

[Bang Pham Huu]

For example, a 3D layer $cb_global_cloud_top_height has a WMS style test with WCPS query fragment which is combined with a 4D layer $cb_global_development_stage:

switch
  case ($cb_global_development_stage[development_stage(3)] = 1 
and  $cb_global_cloud_top_height < 8000)
  return {red: 255; green: 255; blue: 255; alpha: 127}
default
   return {red: 0; green: 0; blue: 0; alpha: 0}

WMS GetMap handler for WCPS query fragment is not able to generate a full WCPS query with proper slices for non-XY axes for both layer names for this GetMap request:

localhost:8080/rasdaman/ows?service=WMS&version=1.3.0&request=GetMap&layers=cb_global_cloud_top_height&bbox=29.98,-10,60,20.02&time="2022-09-09T08:53:00.000Z"&width=800&height=600&crs=EPSG:4326&format=image/png&transparent=true&styles=color

The generated WCPS query without proper subset for ansi axis for coverage iterator c1 (cb_global_cloud_top_height) is:

FOR c0 IN (cb_global_development_stage), c1 IN (cb_global_cloud_top_height) RETURN  ENCODE (
switch
  case (c0[Long(-10:20.02), Lat(29.98:60), ansi:"CRS:1"(0), development_stage(3)] = 1 
  and c1 < 8000)
     return {red: 255; green: 255; blue: 255; alpha: 127}

default
   return {red: 0; green: 0; blue: 0; alpha: 0}, "png")