doc: Be smarter about calculating modified status.

This way edit -> undo will properly show up as unmodified.

1 files changed, 5 insertions, 0 deletions

diff --git a/helix-core/src/history.rs b/helix-core/src/history.rs
index df4b9fc4..5a9ec8de 100644
--- a/helix-core/src/history.rs
+++ b/helix-core/src/history.rs
@@ -56,6 +56,11 @@ impl History {
     }
 
     #[inline]
+    pub fn current_revision(&self) -> usize {
+        self.cursor
+    }
+
+    #[inline]
     pub const fn at_root(&self) -> bool {
         self.cursor == 0
     }