Editing last day of an event causes error on submit.

I create a repeating event that repeats daily, each node is created with the same start and end TIMES for that day. Some days have different start and end TIMES so I edit each node for the correct time, checking the "only for this occurrence" radio. Then submit.

When I try this to set the time for the last day of the event, I get the following error:

You have selected a date that is before or the same as the start of the selected event, which is not allowed--check your repeat pattern settings and try again.

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By setting the repeat type to none and the repeat end date to the future, I am able to save this node. However, it looses the [R] in calendar view. Alternatively I can leave the repeat type set to daily and change the end date one day in the future, then delete the extra day it creates. This achieves the same goal and leaves the [R] in place.

Either way, this is not a very elegant solution as it forces the user to do something "weird" to accomplish a simple goal. Therefore I call this a bug.