Fix crash in net fetcher (#713) (#784) #172

Job	Run time
android-arm / initialize	42s
android-arm64 / initialize	44s
android-x86 / initialize	41s
android-x86 / docker-build-image	45s
android-x86 / docker-unittest-image	0s
android-arm / docker-build-image	45s
android-arm / docker-unittest-image	0s
android-arm64 / docker-build-image	41s
android-arm64 / docker-unittest-image	0s
android-arm64 / arm64_devel	16m 44s
android-arm64 / arm64_debug	16m 5s
android-arm64 / arm64_qa	12m 52s
android-arm64 / arm64_gold	13m 6s
android-x86 / x86_devel	16m 35s
android-x86 / x86_debug	15m 19s
android-x86 / x86_qa	13m 14s
android-x86 / x86_gold	12m 23s
android-arm / arm_devel	15m 36s
android-arm / arm_debug	14m 35s
android-arm / arm_qa	14m 38s
android-arm / arm_gold	13m 14s
android-arm / ${{ matrix.name }}_on_device_${{ matrix.type }}	0s
android-arm / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-x86 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-x86 / ${{ matrix.name }}_on_device_${{ matrix.type }}	0s
android-arm64 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-arm64 / ${{ matrix.name }}_on_device_${{ matrix.type }}	0s
	2h 58m 39s

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