Hello! Please check the history from https://www.osm.org/way/181199998. The information from the Corine Land Cover source should be written consistently. I therefore have to change the code_06 key to CLC:code in the previous changeset (according to the frequencies of the different spellings, see https://taginfo.osm.org/search?q=CLC%3Ac#keys and https://taginfo .osm.org/search?q=code_06#keys). I only make adjustments to freshly adjusted surfaces. And by the way, calculable values from the source should not be used twice (area is defined with the keys Area_Ha=635.023269996 and
Shape_Area=6350232.69996), but that's a matter of taste. Is there a reason why you are not interested in a unified notation from one source?