LP1760599: Only show merge records action when multiple bucket records selected
To test:
1) Create a bucket.
2) Select one record from your bucket. Right-click on your record or click on the Actions drop-down.
3) Note that "Merge Selected Records" is clickable.
4) Apply this commit.
5) Repeat steps 2-3. Note that "Merge Selected Records" is no longer
clickable, unless you select two or more records.