Unexpected behaviour of rules

[xtalax]

using ModelingToolkit, SymbolicUtils, Test

@parameters x, t
@variables u(..)

r = @rule u(t, 0) => 0

@test r(u(t, 0)) !== nothing

@test r(u(t, 0.0)) !== nothing

[shashi]

You need to Symbolics.unwrap the expression before running rules.

try:

r(Symbolics.unwrap(u(t, 0)))

Should be documented for sure.

[xtalax]

using ModelingToolkit, SymbolicUtils, Test

@parameters x, t
@variables u(..)

r = @rule u(t, 0) => 0

@test r(Symbolics.unwrap(u(t, 0))) !== nothing

@test r(Symbolics.unwrap(u(t, 0.0))) !== nothing

Still fails