I'm experiencing issues with app.project.autoFixExpressions() (which is a utility function that attempts to fix expressions that a script may have broken, to be used like this: app.project.autoFixExpressions(oldString, newString) - see guide).
It works most of the time, but not always.
Here is a situation where it does not:
// create a new comp, a solid with a slider control, then duplicate the solid to get 5 solids.
var n, N=5;
var name;
var comp = app.project.items.addComp("test", 1280, 720, 1.0, 5.0, 25.0);
with(comp.layers.addSolid([1,1,0.5], comp.width, comp.height, comp.pixelAspect, comp.duration)){ name = "solid"; effect.addProperty("ADBE Slider Control").name = "My Slider"; effect(1)(1).expression = "thisComp.layer(\"solid\").effect(\"My Slider\")(1).value"; };
for (n=1; n<N; n++) comp.layer(1).duplicate();
// at this stage, layer(1).name is "solid 5", ... , layer(5).name is "solid".
// all expressions refer to the slider of the last layer.
// rename all solids and try autofix expressions
for (n=1; n<=N; n++){ name = comp.layer(n).name; app.project.autoFixExpressions(name, comp.layer(n).name = name.replace("solid", "gaz")); };
// ===> the expression in the last layer is not fixed...
If one replaces the line for (n=1; n<N; n++) comp.layer(1).duplicate(); by
for (n=1; n<N; n++) comp.layer(1).duplicate().effect(1)(1).expression = "thisComp.layer(\"solid " + (++n) +"\").effect(\"My Slider\")(1).value";
(so that now each expression refers to its own layer (same as thisLayer.effect(\"My Slider\")(1).value";), then all expressions are fixed correctly.
Should this be considered as a bug or am i doing something wrong ? I'm lost.