Draft: change return type of DataObject::version from `unsigned char` to `const unsigned char&`

change return type of DataObject::version from unsigned char to const unsigned char& to see whether it fixes lhcb/LHCb#151 (closed) due to the lack of lifetime extension of the returned char

added 1 commit

• 75ba62d3 - fix lack of lifetime extension

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mentioned in issue lhcb/LHCb#151 (closed)

added lhcb-lcg-dev4 label

• [2021-09-11 00:18] Validation started with lhcb-lcg-dev4#1765

I've found a solution (see here which explicitly checks for rvalue references, and turns them into lvalues and thus doesn't require this change anymore, so closing this MR.

closed