There's plenty of posts here about being behind a proxy and having to edit the http.sslCAInfo property in your config.
I just uninstalled/reinstalled Git for Windows x64 v2.19.1, made sure all %APPDATA% bits were gone as well.
Even if I set http.sslCAInfo to something like:
C:\Program Files\Git\mingw64\ssl\certs\ca-bundle.crt, the infamous error setting certificate verify locations message appears but states the value for CAfile as:
C:/Program Files/Git/mingw64/libexec/ssl/certs/ca-bundle.crt
First of all, why the libexec folder? Additionally, from within a locally cloned repo, running git config -l, git config --global -l, and git config --system -l all return C:\Program Files\Git\mingw64\ssl\certs\ca-bundle.crt
Anyone seen this before or have a trick for determining where that seemingly incorrect value is coming from?