$ git clone -n https://src.fedoraproject.org/rpms/perl-Term-Shell.git /var/lib/mock/f45-build-26611-618/root/chroot_tmpdir/scmroot/perl-Term-Shell
Cloning into '/var/lib/mock/f45-build-26611-618/root/chroot_tmpdir/scmroot/perl-Term-Shell'...
$ git fetch origin 96c4e979ed3c83bf32b6c23ae8130e448379ae8e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Term-Shell
 * [new ref]         96c4e979ed3c83bf32b6c23ae8130e448379ae8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96c4e97 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild