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The testcases op-logical-and-157 op-logical-and-158 op-logical-and-159 op-logical-or-157 op-logical-or-158 op-logical-or-159 try to create xs:bytes with values of 255. xs:byte is signed and by that restricted to -128 to 127.
Sorry, but I believe that these tests are using xs:unsignedByte, which allows values as high as 255. op-logical-and-157 contains the following: <return> { xs:unsignedByte(255) and xs:unsignedByte(0) } </return> Please close this bug report if you agree with this resolution.
I can confirm.