$ git clone -n https://src.fedoraproject.org/rpms/qrtfreader.git /var/lib/mock/f45-build-33999-676/root/chroot_tmpdir/scmroot/qrtfreader
Cloning into '/var/lib/mock/f45-build-33999-676/root/chroot_tmpdir/scmroot/qrtfreader'...
$ git fetch origin 871ed569515a0df62adf660407b45b396df431dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qrtfreader
 * [new ref]         871ed569515a0df62adf660407b45b396df431dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 871ed56 Initial Releease (fedora#2512916)