$ git clone -n https://src.fedoraproject.org/rpms/perl-Plack.git /var/lib/mock/f40-build-2020129-46596/root/chroot_tmpdir/scmroot/perl-Plack
Cloning into '/var/lib/mock/f40-build-2020129-46596/root/chroot_tmpdir/scmroot/perl-Plack'...
$ git fetch origin 650532727180c44c296e224736f92049add1b648:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Plack
 * [new ref]         650532727180c44c296e224736f92049add1b648 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6505327 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild