TrainGMMApp (strange name) fails with qgisdescriptor

Description

Dashboard is failing

./bin/otbQgisDescriptor TrainGMMApp ./lib/otb/applications ./share/otb/description/

	C:\dashboard\otb\superbuild_x64\OTB\build\bin\otbQgisDescriptor.exe TrainGMMApp C:/dashboard/otb/superbuild_x64/OTB/build/lib/otb/applications C:/dashboard/otb/superbuild_x64/OTB/build/share/otb/description/

ERROR: default_value is empty for 'sample.edg' type='QgsProcessingParameterBoolean'

Steps to reproduce

./bin/otbQgisDescriptor TrainGMMApp ./lib/otb/applications ./share/otb/description/

Configuration information

https://dash.orfeo-toolbox.org/viewBuildError.php?buildid=318336