make more explicit

diff --git a/autoload/lsp/diag.vim b/autoload/lsp/diag.vim
index 5b28f600b1cf377efbe3c15d6fbbe07fcdb6f73f..3b5a0b94864f44bbeb1054ab09a928264f474ee1 100644 (file)
--- a/autoload/lsp/diag.vim
+++ b/autoload/lsp/diag.vim
@@ -404,8 +404,11 @@ def DiagsUpdateLocList(bnr: number): bool
     setbufvar(bnr, 'LspQfId', getloclist(0, {id: 0}).id)
   endif
 
-  var LspQfNr: number = getloclist(0, {id: LspQfId, nr: 0}).nr
-  silent! exe $':{LspQfNr} lhistory'
+  # if pre-existing error list, make current
+  if LspQfId != 0
+    var LspQfNr: number = getloclist(0, {id: LspQfId, nr: 0}).nr
+    silent! exe $':{LspQfNr} lhistory'
+  endif
 
   return true
 enddef