problem

In taskoverview the following JS exception occurred:
Permission denied to access property "nodeType"

user actions

• load task overview
• look into task task properties of a task
• delete that task
• create new task
• type a new taskname,
• TAB to sourceLanguage
• type "D", press return then tab (cursor is probably in targetLang then)
• type "E", press DOWN, LEFT, ENTER, TAB, TAB
• move cursor again to the taskName field
  → Then happens the error

trace

.statics.resolveTextNode @ ext-all-debug.js:32630:13
.constructor @ ext-all-debug.js:32812:36
constructor @ ext-all-debug.js:13136:20
.doDelegatedEvent @ ext-all-debug.js:34355:13
.onDelegatedEvent @ ext-all-debug.js:34349:13
ExtFunction.bind/< @ ext-all-debug.js:6862:32
.focus @ ext-all-debug.js:38030:17
.focus @ ext-all-debug.js:63369:21
.focus @ ext-all-debug.js:63357:28
.onInputFocus @ ext-all-debug.js:191167:9
.fire @ ext-all-debug.js:20731:35
.fire @ ext-all-debug.js:34336:21
.publish @ ext-all-debug.js:34296:25
.publishDelegatedDomEvent @ ext-all-debug.js:34318:9
.doDelegatedEvent @ ext-all-debug.js:34361:13
.onDelegatedEvent @ ext-all-debug.js:34349:13
ExtFunction.bind/< @ ext-all-debug.js:6862:32

Same error with different user actions:

• also create a task
• add some meta data like name and delivery date
• choose languages with the mouse
• click on the inner label of importUpload field (10px right of Import Datei¹)
  → same error was traced

trace

.statics.resolveTextNode @ ext-all-debug.js:32630:13
.constructor @ ext-all-debug.js:32812:36
constructor @ ext-all-debug.js:13136:20
.doDelegatedEvent @ ext-all-debug.js:34355:13
.onDelegatedEvent @ ext-all-debug.js:34349:13
ExtFunction.bind/< @ ext-all-debug.js:6862:32