  We demonstrate the reconstruction of the exciton-polariton condensate loaded
in a single active miniband in one-dimensional microcavity wires with a
complex-valued periodic potentials. The effect appears due to strong
polariton-polariton repulsion and it depends on the type of the single-particle
dispersion of the miniband, which can be fine tuned by the real and imaginary
components of the potential. As a result, the condensate can be formed in a
$0$-state, $\pi$-state, or mixed state of spatiotemporal intermittency,
depending on the shape of the miniband, strength of interparticle interaction,
and distribution of losses in the system. The reconstruction of the condensate
wave function takes place by proliferation of nuclei of the new condensate
phase in the form of dark solitons. We show that, in general, the interacting
polaritons are not condensed in the state with minimal losses, neither they
accumulate in the state with a well-defined wave vector.
