Number of songs in Artist list is sometimes miscalculated

[thedoc31]

For some artists who only appear on a song or two, sometimes the artist list shows that artist on more tracks that they actually appear on.

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Device info:

App version	1.0.0
App version code	160
Android build version	1735215358056
Android release version	7.0
Android SDK version	24
Android build ID	NRD90U
Device brand	lge
Device manufacturer	LGE
Device name	lucye
Device model	LG-H872
Device product name	lucye_tmo_us
Device hardware name	lucye
ABIs	[arm64-v8a, armeabi-v7a, armeabi]
ABIs (32bit)	[armeabi-v7a, armeabi]
ABIs (64bit)	[arm64-v8a]

[thedoc31]

Example - note on the first screenshot it shows "Plaisir de France" has 33 songs, but in fact when you click on the artist there is only one.

[gbakerkallus]

Related: #473