Number of transactions in getblocktemplate output?

[agp80]

Why getblock and getblocktemplate are reporting different transactions count?

For example, http://blockexplorer.com/block/00000000000000071ff9019ce6bd5150ed4828e6724e9ee86206168901fd3f30
getblock prints 652 txs.
getblocktemplate prints 319 only.

The same is for all blocks I've check.

Is it because getblocktemplate filters txs on some criteria?

[jgarzik]

Why getblock and getblocktemplate are reporting different transactions count?

For example, http://blockexplorer.com/block/00000000000000071ff9019ce6bd5150ed4828e6724e9ee86206168901fd3f30
getblock prints 652 txs.
getblocktemplate prints 319 only.

They perform two vastly different operations.

getblock returns a block minted in the past.  getblocktemplate returns a block to be minted in the future.