Handle null value in createDeepLinkPath

src/core/utils.js

@@ -652,5 +652,5 @@ export const shallowEqualKeys = (a,b, keys) => {
   })
 }
 
-export const createDeepLinkPath = (str) => str.replace(/\s/g, "_")
+export const createDeepLinkPath = (str) => str ? str.replace(/\s/g, "_") : ""
 export const escapeDeepLinkPath = (str) => cssEscape( createDeepLinkPath(str) )