patch 8.2.1255: cannot use a lambda with quickfix functions Commit: https://github.com/vim/vim/commit/d43906d2e5969288f239df851f5ad7b1dc2c7251 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jul 20 21:31:32 2020 +0200 patch 8.2.1255: cannot use a lambda with quickfix functions Problem: Cannot use a lambda with quickfix functions. Solution: Add support for lambda. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/6499)

--- a/src/optionstr.c
+++ b/src/optionstr.c
@@ -2255,6 +2255,14 @@ did_set_string_option(
 # endif
 #endif
 
+#ifdef FEAT_QUICKFIX
+    else if (varp == &p_qftf)
+    {
+	if (qf_process_qftf_option() == FALSE)
+	    errmsg = e_invarg;
+    }
+#endif
+
     // Options that are a list of flags.
     else
     {