patch 7.4.2225
Problem: Crash when placing a sign in a deleted buffer.
Solution: Check for missing buffer name. (Dominique Pelle). Add a test.
diff --git a/src/testdir/test_signs.vim b/src/testdir/test_signs.vim
index 79e6098..93cc62c 100644
--- a/src/testdir/test_signs.vim
+++ b/src/testdir/test_signs.vim
@@ -181,3 +181,15 @@
call assert_fails('sign place 1 buffer=', 'E158:')
call assert_fails('sign define Sign2 text=', 'E239:')
endfunc
+
+func Test_sign_delete_buffer()
+ new
+ sign define Sign text=x
+ let bufnr = bufnr('%')
+ new
+ exe 'bd ' . bufnr
+ exe 'sign place 61 line=3 name=Sign buffer=' . bufnr
+ call assert_fails('sign jump 61 buffer=' . bufnr, 'E934:')
+ sign unplace 61
+ sign undefine Sign
+endfunc