button style is randomly different in different places in latest 2.4.0 alphas

[sds100]

Developer TODO (don't remove)

• [ ] create new branch. put issue number at start of name if not a very quick fix.
• [ ] write tests. put issue number in comment
• [ ] update documentation
• [ ] squash and merge
• [ ] delete branch

The issue happened somewhere when working on #603.

[sds100]

happened in this commit: a57d4b8b949eedf4a6e06c0a2b3eb161d4615668

[sds100]

splitties 3.0.0-beta3 and/or material design components 1.4.0 cause the issue

[sds100]

see https://github.com/material-components/material-components-android/issues/2292. i just need to be explicit about the style in the bottomsheetdialogs

[sds100]

fixed

[sds100]

see https://github.com/material-components/material-components-android/issues/2333