Shotgun shots are cancelled immediately after reloading

[GooberRF]

To reproduce:

• As a client in a dedicated server, reload shotgun and hold fire button (either primary or alt) so you fire as soon as the reload finishes
• If logging is available, the first shot on primary, or the first 3 shots on alt, should be cancelled.

I had a quick look into this and it seems like potentially entity_is_reloading in entity.h is reporting the player as still being in the process of reloading even after the reload has finished. I plan to dive further into it, but as this is an issue that affects 1.8.0 servers currently, I wanted to note it here.

I have not noticed the same behaviour with any other weapons, only the shotgun.