copies: inline a variable that's used only once
By inlining it, we also avoid calculating the value when "if of in
seen" is false (probably not significant).
Differential Revision: https://phab.mercurial-scm.org/D4831
bundlerepo: remove a variable alias
"parentrepo" and "repo" were the same thing and I don't see much
reason for it (unionrepo has similar structure and a similar alias but
there are two repos there so at least it makes a little more sense
there).
Differential Revision: https://phab.mercurial-scm.org/D4830
Added signature for changeset
5405cb1a7901