$ git clone -n https://src.fedoraproject.org/rpms/perl-DateTime-TimeZone.git /var/lib/mock/f45-build-23051-595/root/chroot_tmpdir/scmroot/perl-DateTime-TimeZone
Cloning into '/var/lib/mock/f45-build-23051-595/root/chroot_tmpdir/scmroot/perl-DateTime-TimeZone'...
$ git fetch origin e1efe8a042a143b5d71d813fc21ade94b3e26291:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DateTime-TimeZone
 * [new ref]         e1efe8a042a143b5d71d813fc21ade94b3e26291 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1efe8a Perl 5.44 re-rebuild of bootstrapped packages