v9.64.1

ModelingToolkit v9.64.1

Diff since v9.64.0

Merged pull requests:

• fix: fix several bugs (#3390) (@AayushSabharwal)
• build: bump patch version (#3402) (@AayushSabharwal)

Closed issues:

• Parameter splitting breaks runtime generated jacobians (#3294)
• Cases where remake seems to be mutating the original input in some way (#3395)
• breaking change in behavior of complete in non-breaking release (#3397)