Hey Musk, the PR has just been merged in: Fix GLB export with characters that don鈥檛 fit into single UTF-16 code point by darraghjburke 路 Pull Request #10675 路 BabylonJS/Babylon.js (github.com)
Are you using the NPM packages or the CDN? Either way, if you are on the latest version you should see the changes working pretty soon 
Please let me know if you still have issues exporting to .glb and I will definitely take a look