[stable29] Fix federated reshares#58993

Merged

sorbaugh merged 2 commits intostable29from

backport/58689/stable29

Apr 21, 2026

Commits on Mar 19, 2026

fix(federatedfilesharing): Do not set the share id for an existing share
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committed
fix(dav): Use share initiator to get the share node, because the owner might on another server
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committed