Is it possible to view past versions of files after a renewed etckeeper init?

So as the terminal was telling me that /etc wasn't a git repository after running git status and gitk resolv.conf & I made a mistake and ran sudo etckeeper init and sudo etckeeper commit "Initial version" which I already ran earlier before realizing that the terminal was printing out this misleading info(!) only when not using sudo. Now I'd like to know whether (and if so how) I can view changes to files before I reran the init command. Are they still stored somewhere in a way that I could retrieve them? I'm using Debian 9.1 with KDE.