$ git clone -n https://src.fedoraproject.org/rpms/resteasy.git /var/lib/mock/f40-build-2502637-61694/root/chroot_tmpdir/scmroot/resteasy
Cloning into '/var/lib/mock/f40-build-2502637-61694/root/chroot_tmpdir/scmroot/resteasy'...
$ git fetch origin 2e966abf1e2ac501e9a0845a34ac9389063f2193:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/resteasy
 * [new ref]         2e966abf1e2ac501e9a0845a34ac9389063f2193 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e966ab Rebuilt for java-21-openjdk as system jdk