Does the squadron actually lose its record, though, unless their airships formally disband it? ISTR that a squadron can formally exist even if it has no aeroplanes or personnel, no matter how counter-intuitive that may seem.
70 and 104 squadrons were both reduced to 'numberplate unmanned' status with the intention of reforming them (they were, in fact, disbanded at a later date, and reformed after that), but the time when they were in this abeyance counts towards the calculation of continuous service.
A more recent 'for instance' is 216 Sqn - 'disbanded' when absorbed into 12 Sqn in 1980 (after the Buccaneer grounding led to the force being reduced), it was never
offically declared to have done so. When 216 became the Tri* unit in 1984, it reactivated rather than reformed.
