From: Heeyong Song <heeyong.song@samsung.com>
Date: Tue, 14 Apr 2020 05:30:18 +0000 (+0900)
Subject: Fix a crash of the TextureManager
X-Git-Tag: dali_1.9.8~1
X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=commitdiff_plain;h=0f3af5aa90602ae60079d11615d8de0765084afe;hp=0f3af5aa90602ae60079d11615d8de0765084afe

Fix a crash of the TextureManager

The observer may be deleted during the UploadComplete callback.
So disconnect the signal and erase the object from the list first.

Change-Id: I614008c9a93025aef973dc8fcf38e1b578f8f35c
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