$ git clone -n https://src.fedoraproject.org/rpms/perl-Class-Prototyped.git /var/lib/mock/f45-build-22411-591/root/chroot_tmpdir/scmroot/perl-Class-Prototyped
Cloning into '/var/lib/mock/f45-build-22411-591/root/chroot_tmpdir/scmroot/perl-Class-Prototyped'...
$ git fetch origin 4e25f56671933fe3a2275192505948596147a2a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Class-Prototyped
 * [new ref]         4e25f56671933fe3a2275192505948596147a2a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e25f56 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild