Entering the symmetric skeleton node in skeleton table not working (v.1.2.9)

[sommerc]

Bug description

When entering symmetry in the skeleton node editor by entering the symmetric node into the Symmetry column an exception is raised:

Traceback (most recent call last):
  File "C:\Miniconda\envs\sleap\lib\site-packages\sleap\gui\dataviews.py", line 158, in setData
    if item_value == value:
UnboundLocalError: local variable 'item_value' referenced before assignment

• OS:
  Windows 10

• Version(s):
  SLEAP v1.2.9

• SLEAP installation method (listed here):

  • Conda from package
  • Conda from source
  • pip package
  • M1 Macs

[roomrys]

This feature is now available in the (pre) release 1.3.0a0, to install, first uninstall and then:
conda (Windows/Linux/GPU):

conda create -y -n sleap -c sleap -c sleap/label/dev -c nvidia -c conda-forge sleap=1.3.0a0

pip (any OS except Apple Silicon):

pip install sleap==1.3.0a0

Warning: This is a pre-release! Expect bugs and strange behavior when testing.