patch 8.1.1786: double click in popup scrollbar starts selection
Problem: Double click in popup scrollbar starts selection.
Solution: Ignore the double click.
diff --git a/src/proto/popupwin.pro b/src/proto/popupwin.pro
index 0a5db0c..145cbea 100644
--- a/src/proto/popupwin.pro
+++ b/src/proto/popupwin.pro
@@ -4,6 +4,7 @@
void popup_start_drag(win_T *wp);
void popup_drag(win_T *wp);
void popup_set_firstline(win_T *wp);
+int popup_is_in_scrollbar(win_T *wp, int row, int col);
void popup_handle_scrollbar_click(win_T *wp, int row, int col);
int popup_height(win_T *wp);
int popup_width(win_T *wp);