[BUG] Clipetty does not chain calls to the interprogram-cut-function

[spudlyo]

Describe the bug When Clipetty takes over the interprogram-cut-function it does not chain to the previous function that existed there. This means that it is incompatible with other minor modes that may bind to that function.

To Reproduce

• Activate a minor mode (like bodycount-mode) that uses the interprogram-cut-function.
• M-x clipetty-mode

Expected behavior I expect bodycount-mode to still function, even though clipetty-cut is assigned to the interprogram-cut-function. Clipetty should chain to the old value of the interprogram-cut-function to ensure this happens.

[spudlyo]

This is fixed in 8430e1c01ae701fb85bb12703fe59a0f04fd0a6f.