$ git clone -n https://src.fedoraproject.org/rpms/fastfetch.git /var/lib/mock/f45-build-8699-394/root/chroot_tmpdir/scmroot/fastfetch
Cloning into '/var/lib/mock/f45-build-8699-394/root/chroot_tmpdir/scmroot/fastfetch'...
$ git fetch origin 2e24340ecbd4f0add53bce33fd8b44f57e08f6b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fastfetch
 * [new ref]         2e24340ecbd4f0add53bce33fd8b44f57e08f6b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e24340 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild