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Is operator failing to handle expression. Attached sample test give more detail on failing test.
Could you attach the failing test?
Attached programme it self have test.If you run this programme it will never come out from condition if (df1 != null).
I have just went to alternative solution,which will not use "Is" operator but do the same job.
if (!(df1.GetType() == typeof(DataFrame)) || !(df2.GetType() == typeof(DataFrame))) return false;
Fixed in master/4bfbc0c75b72c057eb5eacc904910b15e49067a1
I couldn't able to trace commit in Mono/Master.Could you please send me direct link so that i can test.
I was looking at https://github.com/mono/mono/commits/master/