Personal 'a' used twice

[fglorca]

Is the personal 'a' needed a second time here? I think it is, but I've recently seen it omitted. I sometimes find it confusing when it's essential to include a preposition a second time in sentences like these.

Se ve a un hombre y a una mujer en el jardín.
Se ve a un hombre y una mujer en el jardín.

Many thanks in advance.

[Rusty]

Repeat the personal 'a' for each direct object.

[fglorca]

Thanks a million.