$ git clone -n https://src.fedoraproject.org/rpms/flexmark-java.git /var/lib/mock/f39-build-1908655-42872/root/chroot_tmpdir/scmroot/flexmark-java
Cloning into '/var/lib/mock/f39-build-1908655-42872/root/chroot_tmpdir/scmroot/flexmark-java'...
$ git fetch origin 681eb65e0ff826454b21ef024fa89fca5a0fc0d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flexmark-java
 * [new ref]         681eb65e0ff826454b21ef024fa89fca5a0fc0d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 681eb65 Initial RPM