How to properly use chappg and glossaries together

I use chappg to give me page numbers of the form 2-1 for page 1 of chapter 2 for example.

glossaries compiles and everything seems to work but it fills the console with warnings of the type:

Package glossaries Warning: Hyper target `1.1′ can’t be formed by prefixing location `1-1′. You need to modify the definition of theHpage otherwise you will get the warning: "`name{page.1-1}’ has been referenced but does not exist" on input line 20.

The (excellently detailed) documentation (page 90) suggested adding glsSetCompositor{-} but this doesn’t seem to change anything.

Things tried (but that did not lead to a solution) :

• This question suggested something similar to glsSetCompositor: chappg with glossaries-extra
• renewcommand{theHpage} changes the name{page.1-1} but not much else (I’m probably doing it wrong)
• This forum post is almost precisely my case and also mentions glsSetCompositor and I ensured makeglossaries was after glsSetCompositor but I still get the warning…

MWE:
I’ve left the options I pass to glossaries in the MWE just in case that’s useful.

documentclass{memoir}
usepackage{hyperref}
usepackage{chappg}
usepackage[toc,nonumberlist,nopostdot,noredefwarn]{glossaries}

glsSetCompositor{-}

makeglossaries%

newglossaryentry{help}{%
    name={Help},
    description={Heeeeeeelp!}
}

begin{document}
pagestyle{plain}
pagenumbering{bychapter}
chapter{one}
gls{help}, I need somebody, gls{help}, not just anybody!
clearpage
pagenumbering[GLO]{bychapter}
printglossaries
end{document}

(I wanted to add the chappg tag but I don’t have enough reputation yet)