[7.6.0] Avoid downloading the empty Tree message
#25489
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Valid empty `Tree` messages, which correspond to empty output directories, serialize to two bytes since they always contain an empty but present `Tree` message in the `root` field. Since such directories are very common (for example, as undeclared test output directories), it pays off to avoid downloading them. Closes bazelbuild#25374. PiperOrigin-RevId: 731614115 Change-Id: I64902afbecb55f718eb4d04fdd1f6207a7e8b97a (cherry picked from commit 6795c28)
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Valid empty
Treemessages, which correspond to empty output directories, serialize to two bytes since they always contain an empty but presentTreemessage in therootfield. Since such directories are very common (for example, as undeclared test output directories), it pays off to avoid downloading them.Closes #25374.
PiperOrigin-RevId: 731614115
Change-Id: I64902afbecb55f718eb4d04fdd1f6207a7e8b97a
(cherry picked from commit 6795c28)