diff --git a/src/testdir/test_quickfix.vim b/src/testdir/test_quickfix.vim
index fb6d21f..07fdb96 100644
--- a/src/testdir/test_quickfix.vim
+++ b/src/testdir/test_quickfix.vim
@@ -979,6 +979,7 @@
   call assert_fails('lrewind', 'E924:')
 
   augroup! testgroup
+  delfunc R
 endfunc
 
 func Test_locationlist_cross_tab_jump()
@@ -5835,4 +5836,20 @@
   %bw!
 endfunc
 
+" Weird sequence of commands that caused entering a wiped-out buffer
+func Test_lopen_bwipe()
+  func R()
+    silent! tab lopen
+    e x
+    silent! lfile
+  endfunc
+
+  cal R()
+  cal R()
+  cal R()
+  bw!
+  delfunc R
+endfunc
+
+
 " vim: shiftwidth=2 sts=2 expandtab