caches: move the 'updating the branch cache' message in 'updatecaches' We are about to remove the branchmap cache update in changegroup application. There is a debug message alongside this update that we do not want to loose. We move the message beforehand to simplify the test update in the next changeset. The message move is quite noisy and isolating that noise is useful. Most tests update are just line reordering since the message is issued at a later point during the transaction. After this changes, the message is displayed in more case since local commit creation also issue it.

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ERROR: FIXME: This is a known failure of filelog.size for data starting with \1\n

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OK.