Error interacting with Recipe Book when opened within inventory

[grapereader]

Unsure if this is an issue with Recipe Book or Attach Notes. Error suggests Attach Notes so filing the bug here.

Error report

The mod Attach Notes (0.5.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event attach-notes::on_gui_click (ID 1)
attach-notes/scripts/metatables.lua:67: attempt to index local 'entity' (a nil value)
stack traceback:
attach-notes/scripts/metatables.lua:67: in function '__newindex'
attach-notes/scripts/entity-notes/gui-templates.lua:38: in function '?'
attach-notes/scripts/gui-tools.lua:187: in function 'handleGuiEvent'
attach-notes/scripts/gui-tools.lua:194: in function 'func'
attach-notes/framework.lua:98: in function <attach-notes/framework.lua:97>