$ git clone -n https://src.fedoraproject.org/rpms/fbthrift.git /var/lib/mock/f38-build-side-42-init-devel-673176-26681/root/chroot_tmpdir/scmroot/fbthrift
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-673176-26681/root/chroot_tmpdir/scmroot/fbthrift'...
$ git fetch origin 47eb9d539e0b56309f1dbd8adea50c4374d8839d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fbthrift
 * [new ref]         47eb9d539e0b56309f1dbd8adea50c4374d8839d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47eb9d5 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild