$ git clone -n https://src.fedoraproject.org/rpms/R-oskeyring.git /var/lib/mock/f40-build-2285481-55678/root/chroot_tmpdir/scmroot/R-oskeyring
Cloning into '/var/lib/mock/f40-build-2285481-55678/root/chroot_tmpdir/scmroot/R-oskeyring'...
$ git fetch origin e3eba7ba334ce336b72c0f9184ac5901238c8317:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-oskeyring
 * [new ref]         e3eba7ba334ce336b72c0f9184ac5901238c8317 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3eba7b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild