try to fix first startup
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@ -324,6 +324,8 @@ class driver(screenDriver):
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self.env['screen']['newCursorAttrib'] = None
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self.env['screen']['oldNegativeDelta'] = ''
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# initialize current deltas
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if self.env['screen']['oldTTY'] == None:
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self.env['screen']['oldTTY'] = self.env['screen']['newTTY']
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self.env['screen']['newNegativeDelta'] = ''
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self.env['screen']['newDelta'] = ''
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self.env['screen']['newAttribDelta'] = ''
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