Reloading the open file (a peer's restore, the fallback of a rollback)
runs initialize-workspace again without leaving the workspace. The
streams the first run started kept running next to the new ones, so a
commit added one undo entry per reload and each notification was
handled twice. The old subscription also sent its unsubscribe after the
new subscribe, which ended the new one on the server.
A new initialize-workspace, text reflow, shape layout or notification
subscription stops the one before it, and a subscription replaced by
one to the same file sends no unsubscribe.
A rollback can remove or change shapes the UI still refers to.
- The selection drops shapes that are gone and the color picker that
edited them closes.
- The undo history is cut at the reverted action; it stays when no
entry holds a reverted change. Undo and redo commits carry real undo
changes and the history index they moved from, so a reverted Ctrl+Z
puts the change and the index back.
- An open path edition whose shape the rollback changed closes without
saving the editor's stale copy. The v2 text editor loads the reverted
text again; the WASM editor already showed it.
- The Alt measurements look the hovered shape up in the current data.
- Plugin setters, resize() and rotate() on a removed shape throw
"Shape not found", whatever the plugin's throwValidationErrors flag.
A rollback reverts whole undo groups, across files and saves, so that
no user action is left half done. Some actions still split:
- An action that commits several times inside one undo transaction
(e.g. applying a token to several shapes) gave each commit its own
group, so a rejection could revert part of it: shapes ended up linked
to a token whose value was never applied. An undo transaction now
opens with a commit group that every commit made inside it takes.
- The commit that undoes saved commits of a rejected action joined an
open transaction's group, so a later rejection there reverted the
undo too. It gets a group of its own.
- Emptying the open transaction during a rollback dropped its group, so
its later commits were no longer one unit. It keeps its group.
- Waiting for a save ended as soon as the queue emptied, while later
commits could still wait in the buffer. Waiters now also wait for an
empty buffer.
A test covers a token action of three commits in one save whose third
commit is rejected.
