$ git clone -n https://src.fedoraproject.org/rpms/rest.git /var/lib/mock/f39-build-1493173-34538/root/chroot_tmpdir/scmroot/rest
Cloning into '/var/lib/mock/f39-build-1493173-34538/root/chroot_tmpdir/scmroot/rest'...
$ git fetch origin a2ce088297ff2ea7d82225fd235ade1280ac2c94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rest
 * [new ref]         a2ce088297ff2ea7d82225fd235ade1280ac2c94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2ce088 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild