$ git clone -n https://src.fedoraproject.org/rpms/jakarta-el.git /var/lib/mock/f38-build-side-42-init-devel-765695-27718/root/chroot_tmpdir/scmroot/jakarta-el
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-765695-27718/root/chroot_tmpdir/scmroot/jakarta-el'...
$ git fetch origin 76743a78b33e67ee7e4787b922207e9b06a72815:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jakarta-el
 * [new ref]         76743a78b33e67ee7e4787b922207e9b06a72815 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 76743a7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild