SpannableString 中的内存泄漏，取决于我放置 ClickableSpan 的位置

Question

所以，....

我有这个代码（onStart）：

ss = new SpannableString(getString(R.string.legal_user_acceptance_disclaimer));
ss.setSpan(clickableSpanTermsOfUse, 32, 44, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

它泄漏了父级- Activity（这些行在里面）。

如果我只改变数字：

ss.setSpan(clickableSpanTermsOfUse, 49, 63, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

泄漏消失。

clickableSpanTermsOfUse (memory leak is the same with a normal ClickableSpan):

clickableSpanTermsOfUse = new NoRefCopySpan() {
        @Override
        public void onClick(View textView) {
            startActivity(new Intent(ChooseLoginRegistrationActivity.this, PrivacyStatement.class));//, TermsOfUse.class));
        }

        @Override
        public void updateDrawState(TextPaint ds) {
            super.updateDrawState(ds);
            ds.setUnderlineText(false);
        }
    };

public class NoRefCopySpan extends ClickableSpan implements NoCopySpan {
    @Override
    public void onClick(@NonNull View widget) { }

    @Override
    public void updateDrawState(TextPaint ds) {
        super.updateDrawState(ds);
    }

}

I tried around a lot, using SpannableStringBuilder instead of SpannableString, hooking somewhere else into the lifecycle, manually setting all values to null, the only thing that makes a difference is, WHERE I put the ClickableSpan.

What's going on here na dhow can I get rid of the memory leak?