$ git clone -n https://src.fedoraproject.org/rpms/perl-String-ShellQuote.git /var/lib/mock/f45-build-26367-617/root/chroot_tmpdir/scmroot/perl-String-ShellQuote
Cloning into '/var/lib/mock/f45-build-26367-617/root/chroot_tmpdir/scmroot/perl-String-ShellQuote'...
$ git fetch origin 01df2db96ee2afe4665b700b600f13242a5e07c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-String-ShellQuote
 * [new ref]         01df2db96ee2afe4665b700b600f13242a5e07c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01df2db Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild