(lp#819269)
* bug fix: &REST to &MORE conversion still works in unsafe call to known
functions; reported by Lutz Euler (lp#826459).
+ * bug fix: bogus deadlocks from interrupts and GCs. (lp#807475, regression
+ since 1.0.48)
changes in sbcl-1.0.50 relative to sbcl-1.0.49:
* enhancement: errors from FD handlers now provide a restart to remove