I believe I've been hit by this in #748304 (severity: serious):
~~~~
dh_installdocs -v --link-doc=tupi-data
install -g 0 -o 0 -d debian/tupi/usr/share/doc
ln -sf tupi-data debian/tupi/usr/share/doc/tupi
(grep -s -v misc:Depends debian/tupi.substvars; echo
"misc:Depends=tupi-data (= 0.2+git04-1+b1)") > debian/tupi.substvars.new
mv debian/tupi.substvars.new debian/tupi.substvars
~~~~
The above log fragment demonstrates how binNMU breaks.
As Sebastian Ramacher wrote [1]: "The problem is that
tupi-data (= ${binary:Version}) appears in tupi's ${misc:Depends}".
[1]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=748304#22
--
Best wishes,
Dmitry Smirnov
GPG key : 4096R/53968D1B
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