Fixed Amplifier.amplify for 2D PoEs
Fixed Amplifier.amplify for 2D PoEs


Former-commit-id: 1878c100bb589d54ab6ba2520f7a1a93ac7dafb7 [formerly bb72593432a73478a15b426cd81a3e0bc4bec3f3] [formerly bb72593432a73478a15b426cd81a3e0bc4bec3f3 [formerly 7749723583150b97ab2bf50cf72019f204edf462]]
Former-commit-id: 784599a64260be28f7f7586b75cb1d2664df24cf
Former-commit-id: 3b38efd9f845f48c5e54f18009fcd665dd807f88
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine