patch 7.4.877
Problem:    ":find" sometimes fails. (Excanoe)
Solution:   Compare current characters instead of previous ones.
diff --git a/src/misc2.c b/src/misc2.c
index 407d6b5..4f82117 100644
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -5084,7 +5084,7 @@
         i += MB_PTR2LEN(s1 + i);
         j += MB_PTR2LEN(s2 + j);
     }
-    return c1 == c2;
+    return s1[i] == s2[j];
 }
 #endif