NDEF Editor Example - Clicking on 'read tag' will erase existing records

Description:

Clicking on "read tag" will delete any existing record.
Steps to reproduce:

1. Open the NDEF Editor example
2. Click on "Add a record", then on "text record"
3. Write anything you want in the record and save it
4. Click on "Write to tag"
5. Cancel it
6. Click on "Read tag"
7. Cancel it (the record will now have disappeared)

Expected behavior:

Reading a tag should have no impact on the already existing records
Observed behavior:

Clicking on "read tag" causes the records to be lost
Special notes:

This applies for text and URI records.