Test regex location if URI matches exactly to non-exact location.

Revert a feature introduced in r2028. The feature confuses mostly,
the only gain was not to test regex for a frequent request such as
"/" in "locaiton /".

src/http/ngx_http_core_module.c

diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index 637feab..984d306 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -1590,9 +1590,14 @@
 
         if (len == (size_t) node->len) {
 
-            r->loc_conf = (node->exact) ? node->exact->loc_conf:
-                                          node->inclusive->loc_conf;
-            return NGX_OK;
+            if (node->exact) {
+                r->loc_conf = node->exact->loc_conf;
+                return NGX_OK;
+
+            } else {
+                r->loc_conf = node->inclusive->loc_conf;
+                return NGX_AGAIN;
+            }
         }
 
         /* len < node->len */