No computed layers displayed

[dmarteau]

Up to c1177eb an invalid GetLegendGraphic with no LAYER param was issued:

map_1     | 2020-10-06 08:26:30,397	RREQ	[1]		400	GET	?DPI=96&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&FORMAT=image%2Fpng&ICONLABELSPACE=2&ITEMFONTSIZE=9&LAYERFONTBOLD=FALSE&LAYERFONTSIZE=0&LAYERSPACE=0&LAYERTITLE=FALSE&MAP=wps-results%3A8f7c098a-07ad-11eb-b86b-0242ac130002%2Flzmtest_qgisbuffer.qgs&REQUEST=GetLegendGraphic&SERVICE=WMS&SLD_VERSION=1.1.0&STYLE=&SYMBOLSPACE=1&TRANSPARENT=TRUE&VERSION=1.3.0&WIDTH=150	2	202	
map_1     | 2020-10-06 08:26:30,398	REQ	[1]	172.19.0.5	400	GET	/ows/?dpi=96&exceptions=application%2Fvnd%2Eogc%2Ese%5Finimage&format=image%2Fpng&iconlabelspace=2&itemfontsize=9&layerfontbold=FALSE&layerfontsize=0&layerspace=0&layertitle=FALSE&map=wps%2Dresults%3A8f7c098a%2D07ad%2D11eb%2Db86b%2D0242ac130002%2Flzmtest%5Fqgisbuffer%2Eqgs&request=GetLegendGraphic&service=WMS&sld%5Fversion=1%2E1%2E0&style=&symbolspace=1&transparent=TRUE&version=1%2E3%2E0&width=150	3	202	Lizmap	
...
map_1     | 2020-10-06 08:26:39,158	DEBUG	[45]	Resolving 'wps-results' protocol
map_1     | 2020-10-06 08:26:39,158	WARNING	[45]	Qgis: : formatString is: image/png
map_1     | 2020-10-06 08:26:39,158	INFO	[45]	Qgis: Server: DPI:96
map_1     | 2020-10-06 08:26:39,158	INFO	[45]	Qgis: Server: EXCEPTIONS:application/vnd.ogc.se_inimage
map_1     | 2020-10-06 08:26:39,158	INFO	[45]	Qgis: Server: FORMAT:image/png
map_1     | 2020-10-06 08:26:39,158	INFO	[45]	Qgis: Server: ICONLABELSPACE:2
map_1     | 2020-10-06 08:26:39,158	INFO	[45]	Qgis: Server: ITEMFONTSIZE:9
map_1     | 2020-10-06 08:26:39,158	INFO	[45]	Qgis: Server: LAYERFONTBOLD:FALSE
map_1     | 2020-10-06 08:26:39,158	INFO	[45]	Qgis: Server: LAYERFONTSIZE:0
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: LAYERSPACE:0
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: LAYERTITLE:FALSE
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: MAP:wps-results:8f7c098a-07ad-11eb-b86b-0242ac130002/lzmtest_qgisbuffer.qgs
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: REQUEST:GetLegendGraphic
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: SERVICE:WMS
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: SLD_VERSION:1.1.0
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: STYLE:
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: SYMBOLSPACE:1
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: TRANSPARENT:TRUE
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: VERSION:1.3.0
map_1     | 2020-10-06 08:26:39,159	INFO	[45]	Qgis: Server: WIDTH:150
map_1     | 2020-10-06 08:26:39,159	WARNING	[45]	Qgis: Server: <ServiceExceptionReport version="1.3.0" xmlns="http://www.opengis.net/ogc">
map_1     |  <ServiceException code="MissingParameterValue">The LAYERS parameter is missing.</ServiceException>
map_1     | </ServiceExceptionReport>

Now, the name of the layer is displayed but:

• No layer displayed on the map
• No requests are send to the server !