Apply GeoIPExcludeUnknown before checking transitions

Otherwise, it always seems as though our Exclude* options have
changed, since we're comparing modified to unmodified values.

Patch from qwerty1. Fixes bug 9801. Bugfix on 0.2.4.10-alpha, where
GeoIPExcludeUnknown was introduced.

changes/bug9801

@@ -0,0 +1,5 @@
+  o Minor bugfixes:
+    - When GeoIPExcludeUnkonwn is enabled, do not incorrectly decide
+      that our options have changed every time we SIGHUP. Fixes bug
+      9801; bugfix on 0.2.4.10-alpha. Patch from "qwerty1".
+

src/or/config.c

@@ -1592,6 +1592,20 @@ options_act(const or_options_t *old_options)
     return -1;
   }
 
+  config_maybe_load_geoip_files_(options, old_options);
+
+  if (geoip_is_loaded(AF_INET) && options->GeoIPExcludeUnknown) {
+    /* ExcludeUnknown is true or "auto" */
+    const int is_auto = options->GeoIPExcludeUnknown == -1;
+    int changed;
+
+    changed  = routerset_add_unknown_ccs(&options->ExcludeNodes, is_auto);
+    changed += routerset_add_unknown_ccs(&options->ExcludeExitNodes, is_auto);
+
+    if (changed)
+      routerset_add_unknown_ccs(&options->ExcludeExitNodesUnion_, is_auto);
+  }
+
   /* Check for transitions that need action. */
   if (old_options) {
     int revise_trackexithosts = 0;
@@ -1687,20 +1701,6 @@ options_act(const or_options_t *old_options)
       connection_or_update_token_buckets(get_connection_array(), options);
   }
 
-  config_maybe_load_geoip_files_(options, old_options);
-
-  if (geoip_is_loaded(AF_INET) && options->GeoIPExcludeUnknown) {
-    /* ExcludeUnknown is true or "auto" */
-    const int is_auto = options->GeoIPExcludeUnknown == -1;
-    int changed;
-
-    changed  = routerset_add_unknown_ccs(&options->ExcludeNodes, is_auto);
-    changed += routerset_add_unknown_ccs(&options->ExcludeExitNodes, is_auto);
-
-    if (changed)
-      routerset_add_unknown_ccs(&options->ExcludeExitNodesUnion_, is_auto);
-  }
-
   if (options->CellStatistics || options->DirReqStatistics ||
       options->EntryStatistics || options->ExitPortStatistics ||
       options->ConnDirectionStatistics ||