The right hand side of 𥓁 (U+254C1) is a corrupted form of 𠬦, which is unrelated to 囪 or 囱. Therefore the shape should be kept as is (using 夂 with final stroke as dot, and not be normalized to 夕 or middle of 囪.
Therefore, the glyph should match the G glyph at GHZ-42434.03, and the UCS2003 glyph is wrong.
Glyph in code charts:
Glyph in CNS11643:
Component Structure in CNS11643:
Glyph & Source in MOE Dictionary:
Actual glyph in 中华大字典:
The right hand side of 𥓁 (U+254C1) is a corrupted form of 𠬦, which is unrelated to 囪 or 囱. Therefore the shape should be kept as is (using 夂 with final stroke as dot, and not be normalized to 夕 or middle of 囪.
Therefore, the glyph should match the G glyph at GHZ-42434.03, and the UCS2003 glyph is wrong.