$ git clone -n https://src.fedoraproject.org/rpms/perl-File-ChangeNotify.git /var/lib/mock/f45-build-23465-597/root/chroot_tmpdir/scmroot/perl-File-ChangeNotify
Cloning into '/var/lib/mock/f45-build-23465-597/root/chroot_tmpdir/scmroot/perl-File-ChangeNotify'...
$ git fetch origin 16222f6f0bb54fa5fed83bfc95e2f15243822cc3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-File-ChangeNotify
 * [new ref]         16222f6f0bb54fa5fed83bfc95e2f15243822cc3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16222f6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild