$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-DProf.git /var/lib/mock/f41-build-815833-149783/root/chroot_tmpdir/scmroot/perl-Devel-DProf
Cloning into '/var/lib/mock/f41-build-815833-149783/root/chroot_tmpdir/scmroot/perl-Devel-DProf'...
$ git fetch origin dc7c98cc3f177bd635afcc64d9441add01e0f4a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Devel-DProf
 * [new ref]         dc7c98cc3f177bd635afcc64d9441add01e0f4a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc7c98c Perl 5.40 rebuild