Sync the Top field sort on value to Facet sort on value in search block.

[iRohitSingh]

Currently the value of Top sort field in search block is not persisted or sync with sort on field of facet.

Steps to reproduce.

1. Create a search block.
2. After selecting criteria fill the sort on property.

Now go to facet section and enable to sorton property.

3. Add the sort on property.

4. Save the page.

5. Now we will be seeing the sorton Whatever you choosen after the listing criteria.

6. When you select the other sorton options the initial sorton, will be not available to choose.