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-rw-r--r--src/buffer.cc4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/buffer.cc b/src/buffer.cc
index 3eb6920c..2bf5db95 100644
--- a/src/buffer.cc
+++ b/src/buffer.cc
@@ -197,6 +197,8 @@ struct Buffer::Modification
bool Buffer::undo()
{
+ commit_undo_group();
+
if (m_history_cursor == m_history.begin())
return false;
@@ -212,6 +214,8 @@ bool Buffer::redo()
if (m_history_cursor == m_history.end())
return false;
+ assert(m_current_undo_group.empty());
+
for (const Modification& modification : *m_history_cursor)
apply_modification(modification);