Maxima not able to solve an integral, but I think it did before

Hello, I think I tried the following integral a couple of months ago:

integrate((x^m * (1 - x)^n * (a + b*x + c*x^2))/(1 + x^2), x, 0, 1);

and Maxima was able to find a result, but in 5.18.1, I just get
an integral noun expression.

I seem to recall there was some new code in February which
enabled the solution; was that code disabled or removed or
something is blocking it from working? Or am I just imagining
the whole thing?

Thanks for any info.

Robert Dodier