$ git clone -n https://src.fedoraproject.org/rpms/perl-Env-ShellWords.git /var/lib/mock/f45-build-23415-597/root/chroot_tmpdir/scmroot/perl-Env-ShellWords
Cloning into '/var/lib/mock/f45-build-23415-597/root/chroot_tmpdir/scmroot/perl-Env-ShellWords'...
$ git fetch origin d014c8ef3f0c2743da755705e6c5e9a16dffcbad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Env-ShellWords
 * [new ref]         d014c8ef3f0c2743da755705e6c5e9a16dffcbad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d014c8e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild