I am not an native English speaker so the paragraph below is really hard for me to understand.
From https://www.apache.org/licenses/LICENSE-2.0:
If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.
Does it mean that if I find a code repository A with Apache2 license and find out that some of code infringe my patents (which means using them without my authorization), and I want to sue the code contributors (e.g. ask them to delete that part of code from A), then I can't use the code A anymore (including building anything based on A)?