EP3419964A1 - CRYSTALLINE MODIFICATIONS OF METHYL (3Z)-3-{[(4-{METHYL[(4-METHYLPIPERAZIN-1-YL)ACETYL]AMINO} PHENYL)AMINO](PHENYL)METHYLIDENE}-2-OXO-2,3-DIHYDRO-1H-INDOLE-6-CARBOXYLATE SALTS AND METHODS OF PREPARATION THEREOF