position_in_route is getting changed for an activity without slaWindowStart and slaWindowEnd.

Summary:

An activity without sla start(slaWindowStart) and sla end(slaWindowEnd), and it was assigned to Tech in position 1 place,

and if we are trying to update the date as null which is not supported on that activity("Activity type does not support non-scheduled activities")

and the activity position is getting changed to 3 or 4 on Tech route after trying to update date as null.

How it is impacting the activity "position_in_route" when update of date is failed with error("errorDetail": "Activity type does not support non-scheduled activities")?

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