[stable34] fix(encryption): keep version and size in sync for files not in the cache - #64484
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…ache A file written through a stream has no file cache entry until the caller scans it, but both inputs of the block signature are read from that entry: stream_close() can only bump `encryptedVersion` if the entry exists, while the reader got version 0 instead of the 1 the blocks were signed with, and filesize() returned the wrapped storage's ciphertext size, which moved the 'end' position marker to the wrong block. Reading such a file back - e.g. moving a part file to a target on another storage - failed with "Bad Signature". Treat a missing version as 1 on read, and let the size tracked while writing win over the wrapped storage's size even without a cache entry. Also stop reading `encryptedVersion` off a missing source entry when updating the encrypted version of a copy or rename. Assisted-by: ClaudeCode:claude-opus-5 Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>
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Backport of #64365
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