$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-Symdump.git /var/lib/mock/f40-build-2221118-52677/root/chroot_tmpdir/scmroot/perl-Devel-Symdump
Cloning into '/var/lib/mock/f40-build-2221118-52677/root/chroot_tmpdir/scmroot/perl-Devel-Symdump'...
$ git fetch origin df541540ed60cc9610ddf939b6c6f2022a964f86:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Devel-Symdump
 * [new ref]         df541540ed60cc9610ddf939b6c6f2022a964f86 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df54154 Package tests; Modernize spec