15557 civil procedure/ execution of judgment/ Mistake in execution of judgment Civil procedure code Execution of judgement civil procedure volume 4 Mistake in execution of judgment Federal supreme court of Ethiopia cassation decisions cassation procedure execution of judgment በአፈፃፀም ጉዳይ በስህተት በፍ/ባለመብት እጅ ስለገባ የከተማ መሬት ይዞታ Cassation 15557