Prevented drawing of empty 2D profile as thumbnail as this causes errors, replaced by drawing empty thumbnail instead (which is correct as there is nothing to draw).Related to Issue [DSB-827]
Make sure that soils used in Borings are saved to when using "Save selected data as". This ensures a complete data set to be saved.Related to Issue [DSB-846]
Solved the issue by adding test on Soil being there before trying to get its color in order to synchronize the colors of a Boring. Related to Issue [DSB-846]