$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-LeakTrace.git /var/lib/mock/f41-build-816868-150476/root/chroot_tmpdir/scmroot/perl-Test-LeakTrace
Cloning into '/var/lib/mock/f41-build-816868-150476/root/chroot_tmpdir/scmroot/perl-Test-LeakTrace'...
$ git fetch origin b87a475ef2a14916e4fe1697f284d54b26463534:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-LeakTrace
 * [new ref]         b87a475ef2a14916e4fe1697f284d54b26463534 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b87a475 Perl 5.40 re-rebuild of bootstrapped packages