This function should almost never be called. It clears the filter
of any cached iterators that haven’t been reffed with
TreeModel.refNode. This might be useful if the child model
being filtered is static (and doesn’t change often) and there has been
a lot of unreffed access to nodes. As a side effect of this function,
all unreffed iters will be invalid.
This function should almost never be called. It clears the filter of any cached iterators that haven’t been reffed with TreeModel.refNode. This might be useful if the child model being filtered is static (and doesn’t change often) and there has been a lot of unreffed access to nodes. As a side effect of this function, all unreffed iters will be invalid.