cat > ./a.s <<eof
.symver foo, foo@v1
.globl foo
foo:
eof

cat > ./ver <<eof
v1 {};
v2 { foo; };
eof

# Note that v2 { foo; } is ignored.
ld/ld-new -shared --version-script=ver a.o -o a.so

.dynsym has foo@v1.
This is error-prone and it'd be nice to report a warning.

(The gold output has both foo@v1 and foo@@v2. You might call it a bug because you consider GNU ld the standard, but I'll insist that it's the design flaw of the assembler @ syntax.
Linkers wouldn't need indirection complexity or combining version complexity if the ",remove" semantics were used in the beginning.)