$ git clone -n https://src.fedoraproject.org/rpms/perl-Text-xSV.git /var/lib/mock/f45-build-27165-621/root/chroot_tmpdir/scmroot/perl-Text-xSV
Cloning into '/var/lib/mock/f45-build-27165-621/root/chroot_tmpdir/scmroot/perl-Text-xSV'...
$ git fetch origin 7bfa051297fc3f48cbd8fc8926c7dc9a1941491b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Text-xSV
 * [new ref]         7bfa051297fc3f48cbd8fc8926c7dc9a1941491b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7bfa051 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild