$ git clone -n https://src.fedoraproject.org/rpms/perl-Date-Handler.git /var/lib/mock/f40-build-2016495-46199/root/chroot_tmpdir/scmroot/perl-Date-Handler
Cloning into '/var/lib/mock/f40-build-2016495-46199/root/chroot_tmpdir/scmroot/perl-Date-Handler'...
$ git fetch origin 36924a284e3b66b40a7a3882f172d11df8a456d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Date-Handler
 * [new ref]         36924a284e3b66b40a7a3882f172d11df8a456d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36924a2 Recommend tzdata to support non-UTC time zones