$ git clone -n https://src.fedoraproject.org/rpms/xfce4-calculator-plugin.git /var/lib/mock/f39-build-1546559-36702/root/chroot_tmpdir/scmroot/xfce4-calculator-plugin
Cloning into '/var/lib/mock/f39-build-1546559-36702/root/chroot_tmpdir/scmroot/xfce4-calculator-plugin'...
$ git fetch origin 552a19f923b0307b5c474c50121847da0a6afb38:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-calculator-plugin
 * [new ref]         552a19f923b0307b5c474c50121847da0a6afb38 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 552a19f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild