$ git clone -n https://src.fedoraproject.org/rpms/perl-Pod-Snippets.git /var/lib/mock/f45-build-25901-613/root/chroot_tmpdir/scmroot/perl-Pod-Snippets
Cloning into '/var/lib/mock/f45-build-25901-613/root/chroot_tmpdir/scmroot/perl-Pod-Snippets'...
$ git fetch origin 27a225b3dffb32011dcbebae67b0dd4bad68020a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Pod-Snippets
 * [new ref]         27a225b3dffb32011dcbebae67b0dd4bad68020a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27a225b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild