fix(resolution): Handle git urls that have a hash in the branch name.

Previously yarn was using a string split('#') to separate the URL from the branch name. If a branch
also had a hash in it, then the rest of the split chunks were ignored, meaning only the chunk before
the first '#' was used as the branch name. This change handles those URLs correctly, preserving the
'#'s in URL hashes.

yarnpkg#5954

src/util/version.js

@@ -1,10 +1,10 @@
 /* @flow */
 
 export function explodeHashedUrl(url: string): {url: string, hash: string} {
-  const parts = url.split('#');
+  const [server, ...hashes] = url.split('#');
 
   return {
-    hash: parts[1] || '',
-    url: parts[0],
+    hash: hashes.length ? hashes.join('#') : '',
+    url: server,
   };
 }