Commit31b8db8

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Fix potential data corruption during freeze

Fix oversight in3b97e68 bug fix. Bitwise AND is used instead of OR andit cleans all bits in t_infomask heap tuple field.Backpatch to 9.3

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Original file line number	Diff line number	Diff line change
`@@ -6627,7 +6627,7 @@ heap_prepare_freeze_tuple(HeapTupleHeader tuple, TransactionId cutoff_xid,`
`6627`	`6627`	`frz->t_infomask &= ~HEAP_XMAX_BITS;`
`6628`	`6628`	`frz->xmax=newxmax;`
`6629`	`6629`	`if (flags&FRM_MARK_COMMITTED)`
`6630`		`-frz->t_infomask&=HEAP_XMAX_COMMITTED;`
	`6630`	`+frz->t_infomask\|=HEAP_XMAX_COMMITTED;`
`6631`	`6631`	`changed= true;`
`6632`	`6632`	`totally_frozen= false;`
`6633`	`6633`	`}`

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