$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-SimpleTrace.git /var/lib/mock/f45-build-23161-596/root/chroot_tmpdir/scmroot/perl-Devel-SimpleTrace
Cloning into '/var/lib/mock/f45-build-23161-596/root/chroot_tmpdir/scmroot/perl-Devel-SimpleTrace'...
$ git fetch origin f849d1ac84d7943f101897837c3f9236b377b061:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Devel-SimpleTrace
 * [new ref]         f849d1ac84d7943f101897837c3f9236b377b061 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f849d1a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild