RCS help (possible bug)

[Paul Harris <harri-pc@ee.uwa.edu.au>]

hi everyone,

i'm trying to learn rcs to assist my uni project, however I'm unsure about
the procedure to roll back versions (infact i think i may have found a
bug).

Say I have node_relations.c at version 1.4, but its stuffed. So i want to
go back to version 1.2.1.1 (turned into .1.1 because i just checked it
back in after editting 1.2 without specifying a version) and check it in
at 1.5 (is that the usual way of doing things?). See the middle of the log
to see the 'bug'.

i just add comments for you to see what i was doing...
so i did a checkout to see the error:
$ co node_relations.c
RCS/node_relations.c,v  -->  node_relations.c
revision 1.4
done

checkout out the good version:
$ co -l1.2.1.1 node_relations.c
RCS/node_relations.c,v  -->  node_relations.c
revision 1.2.1.1 (locked)
done

tried to check it back in without locking the latest version (oops):
$ ci -r1.5 node_relations.c
RCS/node_relations.c,v  <--  node_relations.c
ci: RCS/node_relations.c,v: no lock set by wilfy for revision 1.4

locked it without checking it out:
$ rcs -l node_relations.c
RCS file: RCS/node_relations.c,v
1.4 locked
done

checked it in (good, that worked):
$ ci -r1.5 node_relations.c
RCS/node_relations.c,v  <--  node_relations.c
new revision: 1.5; previous revision: 1.4
enter log message, terminated with single '.' or end of file:
>> .
done

checked it out again to take a look:
$ co node_relations.c
RCS/node_relations.c,v  -->  node_relations.c
revision 1.5
done

===================== BUG =================== 
wanted to check it out and lock it, but WHY did it get the 1.2.1.1
revision?? 
$ co -l node_relations.c 
RCS/node_relations.c,v --> node_relations.c 
revision 1.2.1.1 (locked) 
done


=================== BUG proof ====================
check it in, unlock it:
$ ci node_relations.c
RCS/node_relations.c,v  <--  node_relations.c
file is unchanged; reverting to previous revision 1.2.1.1
done

check it out (locked) hmmmm why is THIS now 1.5?? inconsistant operations!
$ co -l node_relations.c
RCS/node_relations.c,v  -->  node_relations.c
revision 1.5 (locked)
done

checked it in so i could do that test again...
$ ci node_relations.c
RCS/node_relations.c,v  <--  node_relations.c
file is unchanged; reverting to previous revision 1.5
done

this happened before
$ co node_relations.c
RCS/node_relations.c,v  -->  node_relations.c
revision 1.5
done

hmm NOW it gets me the 1.5... why did it get out that 1.2.1.1 before??
BUG?
$ co -l node_relations.c
RCS/node_relations.c,v  -->  node_relations.c
revision 1.5 (locked)
done




anyway i hope someone can help me, it would be disasterous to misuse rcs
and stuff up my project :/

thanks,
Paul