After buffy died the first time Kendra came after Kendra died faith. Buffy died so it was if she was already dead so a new slayer wasn't activated. Hope I helped. Don't want to sound rude but would あなた like to 登録する th buffy season six アイコン contest???
Another Slayer wasn't activated after Buffy's death in season five because at that time Buffy no longer carried the Slayer line--Faith did. Kendra was activated after Buffy's death in season one, therefore Kendra held the Slayer line. After Kendra's death Faith was activated. Only Faith's death would activate a new Slayer. Although this fact was either forgotten または overlooked in season seven when Buffy tells the Potentials that her (Buffy's) death could make one of them The Slayer. It is possible, however, that Buffy was merely trying to make a point with that statement and was not being literal.