Error raised when there are no load shapes in the model

[AadilLatif]

SInterval for all LoadShapes must be the same: []

[AadilLatif]

@daniel-thom NMSU is playing around with pydss and ran into this issue.

I implemented a tiny workaround to get the simulation going. QSTS with no profile does not make sense but we can be using the external profile manager so a little confused on what the path forward should be

if len(set(res)):
if len(set(res)) != 1:
raise InvalidConfiguration(
f"SInterval for all LoadShapes must be the same: {res}"
)
return res[0]
else:
return 1

[daniel-thom]

@AadilLatif Your fix would work. This function is only getting called in order to handle the load shape offset issue. A few months ago I added a simulation settings option to disable that behavior by default. Refer to 14fd947 in the merge-gemini branch and settings.project.use_loadshape_offset_workaround. It makes the user opt in to working around this problem. That would avoid this problem altogether.

Perhaps we should merge whatever we need from that branch into master? My team has been impacted by that offset issue. We can always be sure to opt in to the workaround.