Preserve input alpha channel (if any) in RasterSymbolizer's channelSelect

Description

Relates to GEOS-7235.
SLD ChannelSelect removes any alpha channel originally available as input of the symbolized raster.

Environment

None

Status

Assignee

Daniele Romagnoli

Reporter

Daniele Romagnoli

Triage

None

Components

Fix versions

Priority

Medium
Configure