Make sure RefCell borrows are temporary.

This fixes two `RefCell<T> is already borrowed` failures when reloading an
existing pipeline, both caused by functions trying to modify `Pipeline::url`
or `ScriptTask::url` while a reference to a previous borrow is still in scope.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/components/main/pipeline.rs b/src/components/main/pipeline.rs
index 2ed978360ac..78ebd91c868 100644
--- a/src/components/main/pipeline.rs
+++ b/src/components/main/pipeline.rs
@@ -202,7 +202,8 @@ impl Pipeline {
     }
 
     pub fn reload(&self) {
-        self.url.borrow().clone().map(|url| {
+        let url = self.url.borrow().clone();
+        url.map(|url| {
             self.load(url);
         });
     }