Due to a problem in the Intel® Quartus® Prime Software, the get_cells command matches entity names as well as instance names. The get_cells command is a tcl command that returns a collection of cells from the current design relative to the current instance. The get_cells command should match only the instance name and not the entity name.
To work around this problem, surround the component name with hierarchy separator characters ("|"), this will prevent wildcards from expanding on entity names. You can also place a separator between a wildcard and either end of a component name. For example: *|component|*, *|component, or component|*.
This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime Software.