Button panel resetting text upon clicking edit

[RedBrumbler]

When I click to edit a button panel, the set text will revert to the default text. I am fairly sure this has to do with the fact that my button text is completely whitespace since I just want a left / right arrow for the button icon

steps to reproduce:

• Make a button panel
• Edit button panel
• clear Button Panel -> Text
• Apply
• Either edit again, or leave the dashboard and come back, and the labels for the buttons will be back to their defaults

this was using plugin version 7.0.23 on grafana v8.1.5

[RedBrumbler]

Putting a zero width space instead of just whitespace did make it not reset, but I feel like there should be an option to have a button with just an icon. If it exists then I must have missed it but from what I can tell you're pretty much always forced to have text on the button