$ git clone -n https://src.fedoraproject.org/rpms/libfprint.git /var/lib/mock/f45-build-16185-483/root/chroot_tmpdir/scmroot/libfprint
Cloning into '/var/lib/mock/f45-build-16185-483/root/chroot_tmpdir/scmroot/libfprint'...
$ git fetch origin 7b457eea05c9d5c73a6ed3bd3325eac52374c2f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libfprint
 * [new ref]         7b457eea05c9d5c73a6ed3bd3325eac52374c2f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b457ee Update to the upstream version 1.94.100 (rhbz#2506519)