fix(mark): do not restore view in op-pending mode (#20889)

src/nvim/normal.c

@@ -5697,6 +5697,10 @@ static void nv_gomark(cmdarg_T *cap)
 {
   int name;
   MarkMove flags = jop_flags & JOP_VIEW ? kMarkSetView : 0;  // flags for moving to the mark
+  if (cap->oap->op_type != OP_NOP) {
+    // When there is a pending operator, do not restore the view as this is usually unexpected.
+    flags = 0;
+  }
   MarkMoveRes move_res = 0;  // Result from moving to the mark
   const bool old_KeyTyped = KeyTyped;  // getting file may reset it
 

test/functional/editor/mark_spec.lua

@@ -330,7 +330,7 @@ describe('named marks view', function()
     os.remove(file2)
   end)
 
-  it('is restored', function()
+  it('is restored in normal mode but not op-pending mode', function()
       local screen = Screen.new(5, 8)
       screen:attach()
       command("edit " .. file1)
@@ -358,6 +358,18 @@ describe('named marks view', function()
       8 line      |
                   |
       ]])
+      -- not in op-pending mode #20886
+      feed("ggj=`a")
+      screen:expect([[
+      1 line      |
+      ^2 line      |
+      3 line      |
+      4 line      |
+      5 line      |
+      6 line      |
+      7 line      |
+                  |
+      ]])
   end)
 
   it('is restored across files', function()