$ git clone -n https://src.fedoraproject.org/rpms/will-crash.git /var/lib/mock/f40-build-800011-142744/root/chroot_tmpdir/scmroot/will-crash
Cloning into '/var/lib/mock/f40-build-800011-142744/root/chroot_tmpdir/scmroot/will-crash'...
$ git fetch origin e046eb10b4692e240eb8cda36fa62115aafef9c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/will-crash
 * [new ref]         e046eb10b4692e240eb8cda36fa62115aafef9c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e046eb1 Rebuilt for java-21-openjdk as system jdk