vcswatch reports that
there is an error with this package's VCS, or the debian/changelog file inside
it. Please check the error shown below and try to fix it. You might have
to update the VCS URL in the debian/control file to point to the correct
repository.
fatal: unable to access 'https://salsa.debian.org/edd/r-cran-mathjaxr.git/': HTTP/2 stream 1 was not closed cleanly before end of the underlying stream