Changing some parameters of styles via URL

[jpmal974]

The following syntax used to change STYLE parameters throws an error : loadStyle(): Unknown identifier. Parsing error near (GAP):(line 1)

​http://my_server/fcgi-bin/mapserv?map=my_mapfile.map&map.layer[my_layer].class[0].style[0]=GAP+10&icon=my_layers,0&mode=legendicon

The problem seems to be the same with other parameters moved from SYMBOL to STYLE with version 6 (?) :

LINEJOIN, LINECAP, LINEJOINMAXSIZE,...