test: ensure we can round-trip a written tree
test: ensure we can round-trip a written tree

Read a tree into an index, write the index, then re-open the index and
ensure that we are treesame to the original.

stewid/libgit2,stewid/libgit2,Corillian/libgit2,stewid/libgit2,stewid/libgit2,Corillian/libgit2,stewid/libgit2,Corillian/libgit2,Corillian/libgit2,Corillian/libgit2,Corillian/libgit2,stewid/libgit2