I thought this could be helpful for everyone. For details see diff and README.
Adding option to configure fallback behavior
Sorry I've been putting this off! Haven't taken the time. Hoping to look at it and hopefully merge at an upcoming open source hack night event. Really happy to see people use the library!
There, fixed! I reimplemented it because the patch no longer applied cleanly, and because I wanted to change some things.
I removed the fallback to "any locale" entirely because I no longer see the point, and then made the fallback from current locale to default locale optional.