$ git clone -n https://src.fedoraproject.org/rpms/perl-Perlbal-XS-HTTPHeaders.git /var/lib/mock/f40-build-779548-130370/root/chroot_tmpdir/scmroot/perl-Perlbal-XS-HTTPHeaders
Cloning into '/var/lib/mock/f40-build-779548-130370/root/chroot_tmpdir/scmroot/perl-Perlbal-XS-HTTPHeaders'...
$ git fetch origin 2a048afbda82fdfc6e0cf112a6212619f76c6ea0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Perlbal-XS-HTTPHeaders
 * [new ref]         2a048afbda82fdfc6e0cf112a6212619f76c6ea0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a048af Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild