$ git clone -n https://src.fedoraproject.org/rpms/rust-yubibomb.git /var/lib/mock/f42-build-3252932-41225/root/chroot_tmpdir/scmroot/rust-yubibomb
Cloning into '/var/lib/mock/f42-build-3252932-41225/root/chroot_tmpdir/scmroot/rust-yubibomb'...
$ git fetch origin c301bc4fe2e4454ba128976891b543c9a892038b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-yubibomb
 * [new ref]         c301bc4fe2e4454ba128976891b543c9a892038b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c301bc4 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild