updated for version 7.4.590

Problem:    Using ctrl_x_mode as if it contains flags.
Solution:   Don't use AND with CTRL_X_OMNI. (Hirohito Higashi)

src/edit.c

@@ -3394,7 +3394,7 @@ ins_compl_bs()
      * allow the word to be deleted, we won't match everything. */
     if ((int)(p - line) - (int)compl_col < 0
 	    || ((int)(p - line) - (int)compl_col == 0
-		&& (ctrl_x_mode & CTRL_X_OMNI) == 0))
+		&& ctrl_x_mode != CTRL_X_OMNI))
 	return K_BS;
 
     /* Deleted more than what was used to find matches or didn't finish

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    590,
 /**/
     589,
 /**/