[repository,tests] use the new connection api (part 1/2) `add_info` should not play with the cnxset nor the mode. Static analysis showed that: * add_info is an internal api called with a non-none cnx.cnxset and also in write mode * only the altered test violated this assumption, which is now somewhat documented

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#! /bin/sh -e

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#

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if [ "$1" = configure ]; then

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  if which install-docs >/dev/null 2>&1; then

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    install-docs -i /usr/share/doc-base/cubicweb-doc

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  fi

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fi

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#DEBHELPER#

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exit 0