$ git clone -n https://src.fedoraproject.org/rpms/perl-Want.git /var/lib/mock/f45-build-27437-624/root/chroot_tmpdir/scmroot/perl-Want
Cloning into '/var/lib/mock/f45-build-27437-624/root/chroot_tmpdir/scmroot/perl-Want'...
$ git fetch origin 715c968f7eda5b096437d5edd6db5b1d1588dcb5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Want
 * [new ref]         715c968f7eda5b096437d5edd6db5b1d1588dcb5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 715c968 Perl 5.44 rebuild