MapBase: Calling remove_marker_attributes() in the clear_and_remove_attributes() method.
MapBase: Calling remove_marker_attributes() in the clear_and_remove_attributes() method.

Signed-off-by: Étienne Schmitt <94939d08528feab90d3eac3ee2d9c0929a8cff04@schmitt.wf>

etienneschmitt/CGoGN_2,cgogn/CGoGN_2,cgogn/CGoGN_2,david-cazier/CGoGN_2,david-cazier/CGoGN_2