$ git clone -n https://src.fedoraproject.org/rpms/jakarta-mail.git /var/lib/mock/f38-build-side-42-init-devel-685501-26759/root/chroot_tmpdir/scmroot/jakarta-mail
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-685501-26759/root/chroot_tmpdir/scmroot/jakarta-mail'...
$ git fetch origin 9f8ad98321728006028c835a189049224f2cecd8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jakarta-mail
 * [new ref]         9f8ad98321728006028c835a189049224f2cecd8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f8ad98 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild