Commita7a4adc

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Assert(PqCommReadingMsg) in pq_peekbyte().

Interrupting pq_recvbuf() can break protocol sync, so its callers alldeserve this assertion. The one pq_peekbyte() caller suffices already.

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Original file line number	Diff line number	Diff line change
`@@ -928,6 +928,8 @@ pq_getbyte(void)`
`928`	`928`	`int`
`929`	`929`	`pq_peekbyte(void)`
`930`	`930`	`{`
	`931`	`+Assert(PqCommReadingMsg);`
	`932`	`+`
`931`	`933`	`while (PqRecvPointer >=PqRecvLength)`
`932`	`934`	`{`
`933`	`935`	`if (pq_recvbuf())/* If nothing in buffer, then recv some */`

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