Gaffer 1.4.15.4

Fixes

• USDLayerWriter :
  • Fixed silent failures when unable to create the output file (#6197).
  • Fixed leak of usdLayerWriter:fileName context variable.
• PathFilter :
  • Fixed bug preventing display of "Select Affected Objects" menu item in the row name column of promoted Spreadsheets.
  • Fixed bug preventing use of "Select Affected Objects" menu item in the row name column of Spreadsheets with enabledRowNames connected to the paths plug of a PathFilter.
  • Fixed error when using "Select Affected Objects" on Spreadsheet cells connected to the paths plug of a PathFilter.