$ git clone -n https://src.fedoraproject.org/rpms/jakarta-servlet.git /var/lib/mock/f40-build-2376178-60422/root/chroot_tmpdir/scmroot/jakarta-servlet
Cloning into '/var/lib/mock/f40-build-2376178-60422/root/chroot_tmpdir/scmroot/jakarta-servlet'...
$ git fetch origin 6ad1ef1be1a888f9e8ab40a543db03f38a722c0d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jakarta-servlet
 * [new ref]         6ad1ef1be1a888f9e8ab40a543db03f38a722c0d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ad1ef1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild