$ git clone -n https://src.fedoraproject.org/rpms/mathjax3.git /var/lib/mock/f40-build-2298081-56512/root/chroot_tmpdir/scmroot/mathjax3
Cloning into '/var/lib/mock/f40-build-2298081-56512/root/chroot_tmpdir/scmroot/mathjax3'...
$ git fetch origin fded432955761096453d493bd6671cbb997409d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mathjax3
 * [new ref]         fded432955761096453d493bd6671cbb997409d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fded432 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild