Comment 1 for bug 1956636

This has been reported upstream here:

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=49930

and fixed upstream by the following commit:

http://git.savannah.gnu.org/gitweb/?p=guile.git;a=commitdiff;h=b4a80f4239b19fea4d2cc3e9d197f24b809f0624

I considered backporting the commit to fix the issue in Ubuntu, but it's a really large diff and I think it's OK to wait a bit more and see if upstream will release a new version containing the fix.