Phabulous crash on Phriction (wiki) feed updates

[PaulJrBertucci]

On Phriction updates appearing in Phabricator's webhooks feed, Phabulous panics and restarts. Presumably, the application doesn't know how to parse WIKI activity updates.

In debug mode, observed in the terminal:

DEBU[1163] epoch=1602018104&storyAuthorPHID=PHID-USER-cl7a2siedfznogpdf5dc&storyData%5BobjectPHID%5D=PHID-WIKI-cm3jfhzzz7prb5yiozb3&storyData%5BtransactionPHIDs%5D%5BPHID-XACT-WIKI-zgspd3oxsp2qygf%5D=PHID-XACT-WIKI-zgspd3oxsp2qygf&storyID=246&storyText=pbertucci+edited+the+content+of+Setup.&storyType=PhabricatorApplicationTransactionFeedStory

Immediately afterwards:

2020/10/06 21:01:44 [Recovery] panic recovered:
POST /v1/feed/receive HTTP/1.1
Host: localhost:8085
Accept: */*
Accept-Encoding: gzip
Content-Length: 333
Content-Type: application/x-www-form-urlencoded


runtime error: invalid memory address or nil pointer dereference
C:/Go/src/runtime/panic.go:491 (0x429c52)
C:/Go/src/runtime/panic.go:63 (0x428b5d)
C:/Go/src/runtime/signal_unix.go:367 (0x43ff2b)
C:/Users/Martin/Documents/go/src/github.com/etcinit/phabulous/app/controllers/feed.go:56 (0x9e354e)
C:/Users/Martin/Documents/go/src/github.com/etcinit/phabulous/app/controllers/feed.go:54 (0x9e354d)
C:/Users/Martin/Documents/go/src/github.com/etcinit/phabulous/vendor/github.com/gin-gonic/gin/context.go:104 (0x9cf4b2)
C:/Users/Martin/Documents/go/src/github.com/etcinit/phabulous/vendor/github.com/gin-gonic/gin/recovery.go:45 (0x9e0f99)
C:/Users/Martin/Documents/go/src/github.com/etcinit/phabulous/vendor/github.com/gin-gonic/gin/context.go:104 (0x9cf4b2)
C:/Users/Martin/Documents/go/src/github.com/etcinit/phabulous/vendor/github.com/gin-gonic/gin/logger.go:79 (0x9e03b0)
C:/Users/Martin/Documents/go/src/github.com/etcinit/phabulous/vendor/github.com/gin-gonic/gin/context.go:104 (0x9cf4b2)
C:/Users/Martin/Documents/go/src/github.com/etcinit/phabulous/vendor/github.com/gin-gonic/gin/gin.go:332 (0x9d7f03)
C:/Users/Martin/Documents/go/src/github.com/etcinit/phabulous/vendor/github.com/gin-gonic/gin/gin.go:296 (0x9d769a)
C:/Go/src/net/http/server.go:2619 (0x6d1573)
C:/Go/src/net/http/server.go:1801 (0x6cd6bc)
C:/Go/src/runtime/asm_amd64.s:2337 (0x457e70)