$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-StackTrace-AsHTML.git /var/lib/mock/f45-build-23132-596/root/chroot_tmpdir/scmroot/perl-Devel-StackTrace-AsHTML
Cloning into '/var/lib/mock/f45-build-23132-596/root/chroot_tmpdir/scmroot/perl-Devel-StackTrace-AsHTML'...
$ git fetch origin 61767f2ae940555f90caa468751e440826b82eda:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Devel-StackTrace-AsHTML
 * [new ref]         61767f2ae940555f90caa468751e440826b82eda -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 61767f2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild