Running ember serve with ember-source 3.25 leads to:

unexpectedly found "!~" when slicing source, but expected ""
unexpectedly found " comment ~" when slicing source, but expected " comment "

These correspond to these two lines of HBS (they are in different files, I've just put them here for conciseness):

{{~!~}}
{{! comment ~}}

This didn't happen before. Not sure if this is a bug in the template compiler or what I did before was not supposed to work.

Funny thing is that these "errors" appear only sometimes. I can't seem to understand when they appear and when they don't.