App: fix Document::isTransactionEmpty()

2019-09-19 11:41:22 +08:00
parent 846707c628
commit c26081f7dc
1 changed files with 8 additions and 1 deletions
--- a/src/App/Document.cpp
+++ b/src/App/Document.cpp
@@ -1263,7 +1263,14 @@ int Document::getTransactionID(bool undo, unsigned pos) const {
 bool Document::isTransactionEmpty() const
 {
    if (d->activeUndoTransaction) {
-        return d->activeUndoTransaction->isEmpty();
+        // Transactions are now only created when there are actual changes.
+        // Empty transaction is now significant for marking external changes. It
+        // is used to match ID with transactions in external documents and
+        // trigger undo/redo there.
+
+        // return d->activeUndoTransaction->isEmpty();
+
+        return false;
    }

    return true;