$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-Proxy.git /var/lib/mock/f39-build-1450843-32767/root/chroot_tmpdir/scmroot/perl-HTTP-Proxy
Cloning into '/var/lib/mock/f39-build-1450843-32767/root/chroot_tmpdir/scmroot/perl-HTTP-Proxy'...
$ git fetch origin f5a6370fc694c4097795c9f7c06e100401f07177:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-Proxy
 * [new ref]         f5a6370fc694c4097795c9f7c06e100401f07177 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5a6370 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild