fix request counter handling in perl module for $r->internal_redirect()
and $r->has_request_body(), the bug was introduced in r3050

src/http/modules/perl/ngx_http_perl_module.c

diff --git a/src/http/modules/perl/ngx_http_perl_module.c b/src/http/modules/perl/ngx_http_perl_module.c
index 34ecc9a..634801e 100644
--- a/src/http/modules/perl/ngx_http_perl_module.c
+++ b/src/http/modules/perl/ngx_http_perl_module.c
@@ -238,6 +238,7 @@
                    "perl handler done: %i", rc);
 
     if (rc == NGX_DONE) {
+        ngx_http_finalize_request(r, rc);
         return;
     }
 
@@ -257,11 +258,13 @@
     ctx->redirect_uri.len = 0;
 
     if (ctx->done || ctx->next) {
+        ngx_http_finalize_request(r, NGX_DONE);
         return;
     }
 
     if (uri.len) {
         ngx_http_internal_redirect(r, &uri, &args);
+        ngx_http_finalize_request(r, NGX_DONE);
         return;
     }