patch 7.4.2188
Problem:    Completion does not work properly with some plugins.
Solution:   Revert the part related to typing CTRL-E. (closes #972)
diff --git a/src/edit.c b/src/edit.c
index 6dae4a0..2281232 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -3893,7 +3893,7 @@
 
 	    /* CTRL-E means completion is Ended, go back to the typed text.
 	     * but only do this, if the Popup is still visible */
-	    if (c == Ctrl_E && pum_visible())
+	    if (c == Ctrl_E)
 	    {
 		ins_compl_delete();
 		if (compl_leader != NULL)
diff --git a/src/testdir/test_popup.vim b/src/testdir/test_popup.vim
index 708739c..34a2251 100644
--- a/src/testdir/test_popup.vim
+++ b/src/testdir/test_popup.vim
@@ -170,11 +170,12 @@
 
   " Insert match immediately, if there is only one match
   "  <c-e> Should select a character from the line below
-  call append(1, ["December2015"])
-  :1
-  call feedkeys("aD\<f5>\<C-E>\<C-E>\<C-E>\<C-E>\<enter>\<esc>", 'tx')
-  call assert_equal(["December2015", "", "December2015"], getline(1,3))
-  %d
+  " TODO: test disabled because the code change has been reverted.
+  " call append(1, ["December2015"])
+  " :1
+  " call feedkeys("aD\<f5>\<C-E>\<C-E>\<C-E>\<C-E>\<enter>\<esc>", 'tx')
+  " call assert_equal(["December2015", "", "December2015"], getline(1,3))
+  " %d
 
   " use menuone for 'completeopt'
   " Since for the first <c-y> the menu is still shown, will only select
diff --git a/src/version.c b/src/version.c
index 100cf55..4d4c16e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -764,6 +764,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2188,
+/**/
     2187,
 /**/
     2186,