(svn r8135) -Fix (r7582): Don't assert on duplicate non-static grfs when removing duplicates as the PEBKAC effect can result in the user adding the same grf's in the config file.
--- a/src/newgrf_config.cpp Sun Jan 14 22:39:53 2007 +0000
+++ b/src/newgrf_config.cpp Sun Jan 14 22:43:19 2007 +0000
@@ -157,7 +157,7 @@
for (prev = list, cur = list->next; cur != NULL; prev = cur, cur = cur->next) {
if (cur->grfid != list->grfid) continue;
- assert(HASBIT(cur->flags, GCF_STATIC));
+
prev->next = cur->next;
ClearGRFConfig(&cur);
cur = prev; // Just go back one so it continues as normal later on