$ git clone -n https://src.fedoraproject.org/rpms/vcs-diff-lint.git /var/lib/mock/f45-build-37928-718/root/chroot_tmpdir/scmroot/vcs-diff-lint
Cloning into '/var/lib/mock/f45-build-37928-718/root/chroot_tmpdir/scmroot/vcs-diff-lint'...
$ git fetch origin b12575ebc2d2b7074a59c1af871135b3a11ea6f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vcs-diff-lint
 * [new ref]         b12575ebc2d2b7074a59c1af871135b3a11ea6f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b12575e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild