$ git clone -n https://src.fedoraproject.org/rpms/rubygem-ejs.git /var/lib/mock/f40-build-2413284-60564/root/chroot_tmpdir/scmroot/rubygem-ejs
Cloning into '/var/lib/mock/f40-build-2413284-60564/root/chroot_tmpdir/scmroot/rubygem-ejs'...
$ git fetch origin 9f0d48cc8c60dd96d91b24a223e1623a67e0feef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-ejs
 * [new ref]         9f0d48cc8c60dd96d91b24a223e1623a67e0feef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f0d48c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild