I'm using mbserver v-2013-01-28
plackup is launched on Debian using sv run, and I keep getting a warning for each and every request that comes in, like: @40000000512cb0b42f49bc5c [warning] GET
http://mb.videolan.org/ws/2/release/?query=artist%3A%22Khaled%20Bin%20Mohamed%20Al-Rashed%22%20AND%20release%3A%22Collection%22 caused a warning: Use of uninitialized value in string eq at lib/MusicBrainz/Server/Data/WebService.pm line 203.

Enormous amount of warnings like that causes constant IO load on the machine and kills the performance.

Git blame reports that that line was added in 5a826ee98cd8b7594cd3010882efe8af287fef93.