vim-patch:9.0.1385: g'Esc is considered an error (#22544)

Problem:    g'Esc is considered an error.
Solution:   Make g'Esc silently abandon the command. (closes vim/vim#12110)

f86dea8119

test/functional/ui/mode_spec.lua

@@ -44,7 +44,10 @@ describe('ui mode_change event', function()
       {0:~                        }|
                                |
     ]], mode="normal"}
+  end)
 
+  -- oldtest: Test_mouse_shape_after_failed_change()
+  it('is restored to Normal mode after failed "c"', function()
     screen:try_resize(50, 4)
     command('set nomodifiable')
 
@@ -65,6 +68,25 @@ describe('ui mode_change event', function()
     ]], mode="normal"}
   end)
 
+  -- oldtest: Test_mouse_shape_after_cancelling_gr()
+  it('is restored to Normal mode after cancelling "gr"', function()
+    feed('gr')
+    screen:expect{grid=[[
+      ^                         |
+      {0:~                        }|
+      {0:~                        }|
+                               |
+    ]], mode="replace"}
+
+    feed('<Esc>')
+    screen:expect{grid=[[
+      ^                         |
+      {0:~                        }|
+      {0:~                        }|
+                               |
+    ]], mode="normal"}
+  end)
+
   it('works in insert mode', function()
     feed('i')
     screen:expect{grid=[[