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A tool to remove tails from the wires of a shape was created. The tool is based on mechanism 'ShapeFix', is located in types 'ShapeFix_Wire' and 'ShapeAnalysis_Wire', is enabled through method 'ShapeFix_Wire::FixTailMode' and is initialized by methods 'ShapeFix_Wire::SetMaxTailAngle' and 'ShapeFix_Wire::SetMaxTailWidth' and is called through method 'ShapeFix_Wire::FixTails'. The status of any performing of the last method is accessible through method 'ShapeFix_Wire::StatusFixTails'. The tail angle is checked only at the tail start. Mechanism 'ShapeFix' was modified: - the tool is disabled by default; - algorithm 'Fix notched edges' is disabled then the tool is enabled; - the tool and the last algorithm work in turns then the tool works on the request. 'Draw' command 'fixshape' was extended by options '-maxtaila' and '-maxtailw' to test the tool. 'Draw' tests to test the tool were created. Algorithm 'fixshape' was changed in type 'ShapeProcess_OperLibrary' to - use new parameters named 'FixTailMode', 'MaxTailAngle' (in degrees) and 'MaxTailWidth' from the algorithm context; - apply the tool after the shape will be fully fixed if the tool was enabled. Place holders for the new parameters were created in the resource file of mechsnism 'STEPControl_Reader'. Test cases for issue CR26261