Elements under construction should use the construction:* prefix, e.g. "construction:aeroway=taxiway" . Most consuments see "aeroway=taxiway" as "a taxiway already exists here", adding "construction=yes" doesn't help.

Viz: https://wiki.openstreetmap.org/wiki/Cs:P%C5%99edpona_%C5%BEivotn%C3%ADho_cyklu

(see: https://wiki.openstreetmap.org/wiki/Lifecycle_prefix )