patch 8.0.1285: occasional crash when using a channel

Problem:    Occasional crash when using a channel. (Marek)
Solution:   Decrement reference count later. (closes #2315)
diff --git a/nsis/gvim.nsi b/nsis/gvim.nsi
index 4e9bbfb..871ce67 100644
--- a/nsis/gvim.nsi
+++ b/nsis/gvim.nsi
@@ -268,6 +268,9 @@
 	SetOutPath $0\autoload
 	File ${VIMRT}\autoload\*.*
 
+	SetOutPath $0\autoload\dist
+	File ${VIMRT}\autoload\dist\*.*
+
 	SetOutPath $0\autoload\xml
 	File ${VIMRT}\autoload\xml\*.*