SessionLockHandle represents an acquired, held session lock. It is held for the lifetime of a document attachment and released on detach/deactivate.
SessionLockHandle
release releases the held lock so a later tab can acquire it. It must be idempotent: calling it more than once is a no-op.
release
SessionLockHandlerepresents an acquired, held session lock. It is held for the lifetime of a document attachment and released on detach/deactivate.