Again, this is not kind of a bug, rather some proposal.
There is a checkbox "Fill Caps" when the custom Bevel curve is used.
It`ll be super-handy to have the same functionality when we create default round-shaped curve geometry. See the screenshots.
Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-11 13:50, hash: rB06312c6d2db8
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