Orphan branch commits are not displayed correctly

[depsir]

Commits on orphan branches are piled together in the top left corner of the svg commit group.
If I inspect the commit elements I see that:

• in circle cx and cy are missing
• in commitId and commit message x is missing and y is NaN

How to reproduce:

git init .
// start digit on this repo
touch test
git add test
git commit -m "initial commit"
git checkout --orphan secret
git commit -m "secret"

[dsof]

That's expected. The more general case is that digit is currently unable to handle two disconnected graphs. Probably adding an unrelated remote and fetching from it would result in the same "error".